📋 المحتوى المنظم
📖 محتوى تعليمي مفصّل
26
نوع: محتوى تعليمي
إنشاءات هندسية
نوع: QUESTION_HOMEWORK
أنشئ مماسا لدائرة من نقطة واقعة عليها باتباع الخطوات الآتية: ارسم دائرة O مستعملاً الفرجار. اختر نقطة P على الدائرة وارسم AP ، ثم أنشئ مستقيماً عمودياً على AP يمر بالنقطة P ، وسمّ المماس المستقيم t.
نوع: محتوى تعليمي
مسائل مهارات التفكير العليا
27
نوع: QUESTION_HOMEWORK
تحد: PQ مماس للدائرتين S, R كما في الشكل المجاور. أوجد PQ ، وبرر إجابتك.
28
نوع: QUESTION_HOMEWORK
مسألة مفتوحة: ارسم مثلثاً يحيط بدائرة، ومثلثاً محاطاً بدائرة.
29
نوع: QUESTION_HOMEWORK
تبرير: XZ , XW مماسان للدائرة A ، و XZ , XY مماسان للدائرة B كما في الشكل المجاور. فسر لماذا تكون القطع المستقيمة XY , XZ , XW متطابقة رغم أن نصفي قطري الدائرتين مختلفان.
30
نوع: QUESTION_HOMEWORK
اكتب: ما عدد مماسات الدائرة التي يمكن رسمها من نقطة خارجها، ومن نقطة عليها، ومن نقطة داخلها؟ برر إجابتك.
نوع: محتوى تعليمي
تدريب على اختبار
31
نوع: QUESTION_HOMEWORK
نصف قطر O يساوي 10 cm ، و ED مماس لها عند D ، وتقع F على OP وعلى القطعة المستقيمة EP . إذا كان 24 cm = ED ، فما طول EF ؟
32
نوع: QUESTION_HOMEWORK
ما محيط المثلث المجاور؟
نوع: محتوى تعليمي
مراجعة تراكمية
نوع: محتوى تعليمي
أوجد كل قياس مما يأتي: (الدرس 8-4)
33
نوع: QUESTION_HOMEWORK
mJK
34
نوع: QUESTION_HOMEWORK
m∠B
35
نوع: QUESTION_HOMEWORK
mVX
نوع: محتوى تعليمي
في F ، إذا كان: GK = 14 cm , mGK = 142° ، فأوجد كلاً من القياسات الآتية: (الدرس 8-3)
36
نوع: QUESTION_HOMEWORK
mGH
37
نوع: QUESTION_HOMEWORK
JK
38
نوع: QUESTION_HOMEWORK
mKM
نوع: محتوى تعليمي
استعد للدرس اللاحق
نوع: محتوى تعليمي
حل كلاً من المعادلات الآتية:
39
نوع: QUESTION_HOMEWORK
15 = ½ [(360 - x) - 2x]
40
نوع: QUESTION_HOMEWORK
x + 12 = ½ [(180 - 120)]
41
نوع: QUESTION_HOMEWORK
x = ½ [(180 - 64)]
نوع: METADATA
وزارة التعليم
الدرس 5-8 المماسات 215 of MI
2025 - 1447
🔍 عناصر مرئية
A geometric diagram showing two circles, labeled R and S. Circle R has its center labeled R and a radius of 6 units. Circle S has its center labeled S and a radius of 4 units. A line segment PQ is drawn as a common external tangent to both circles, touching circle R at point P and circle S at point Q. A horizontal line connects the centers R and S. Vertical lines are implied from P and Q to the line connecting R and S, forming a rectangle and a right triangle for calculation purposes. The distance between centers R and S is not explicitly given in the diagram.
A geometric diagram showing two circles, labeled A and B, and an external point X. From point X, three tangent segments are drawn: XW, XZ, and XY. The problem statement clarifies that XZ and XW are tangents to circle A, and XZ and XY are tangents to circle B. This implies XZ is a common external tangent segment, and XW and XY are also tangent segments from X to the respective circles. The diagram visually represents these tangent segments originating from point X and touching the circles at points W, Y, and Z.
A triangle is shown with two sides explicitly labeled as 12 cm each. The angle included between these two 12 cm sides is labeled as 60°. This configuration indicates an equilateral triangle, meaning all three sides are 12 cm.
A circle is shown with its center labeled L. Points J and K are on the circumference, forming an arc JK. An inscribed angle is shown with its vertex on the circumference, subtending arc JK, and its measure is 62°. The question asks for the measure of arc JK.
A circle is shown with points A, B, and C on its circumference. An arc AC is explicitly labeled with a measure of 122°. An inscribed angle ∠ABC is formed by chords AB and BC, and it subtends arc AC. The question asks for the measure of angle B (m∠B).
A circle is shown with points V, W, and X on its circumference. A chord VX is drawn. An inscribed angle ∠VWX is formed by chords VW and WX, and its measure is 14°. This angle subtends arc VX. The question asks for the measure of arc VX (mVX).
A circle is shown with its center labeled F. Points G, H, J, K, and M are on the circumference. A chord GK is drawn. A radius FJ is shown. A chord HM is shown. The accompanying text provides additional information: GK = 14 cm and mGK = 142°. This diagram is used for multiple questions (36, 37, 38) which require finding measures of other arcs and segments based on the given information.
📄 النص الكامل للصفحة
--- SECTION: 26 ---
إنشاءات هندسية
أنشئ مماسا لدائرة من نقطة واقعة عليها باتباع الخطوات الآتية: ارسم دائرة O مستعملاً الفرجار. اختر نقطة P على الدائرة وارسم AP ، ثم أنشئ مستقيماً عمودياً على AP يمر بالنقطة P ، وسمّ المماس المستقيم t.
مسائل مهارات التفكير العليا
--- SECTION: 27 ---
تحد: PQ مماس للدائرتين S, R كما في الشكل المجاور. أوجد PQ ، وبرر إجابتك.
--- SECTION: 28 ---
مسألة مفتوحة: ارسم مثلثاً يحيط بدائرة، ومثلثاً محاطاً بدائرة.
--- SECTION: 29 ---
تبرير: XZ , XW مماسان للدائرة A ، و XZ , XY مماسان للدائرة B كما في الشكل المجاور. فسر لماذا تكون القطع المستقيمة XY , XZ , XW متطابقة رغم أن نصفي قطري الدائرتين مختلفان.
--- SECTION: 30 ---
اكتب: ما عدد مماسات الدائرة التي يمكن رسمها من نقطة خارجها، ومن نقطة عليها، ومن نقطة داخلها؟ برر إجابتك.
تدريب على اختبار
--- SECTION: 31 ---
نصف قطر O يساوي 10 cm ، و ED مماس لها عند D ، وتقع F على OP وعلى القطعة المستقيمة EP . إذا كان 24 cm = ED ، فما طول EF ؟
10 cm
16 cm
21.8 cm
26 cm
--- SECTION: 32 ---
ما محيط المثلث المجاور؟
24 cm
34.4 cm
36 cm
104 cm
مراجعة تراكمية
أوجد كل قياس مما يأتي: (الدرس 8-4)
--- SECTION: 33 ---
mJK
--- SECTION: 34 ---
m∠B
--- SECTION: 35 ---
mVX
في F ، إذا كان: GK = 14 cm , mGK = 142° ، فأوجد كلاً من القياسات الآتية: (الدرس 8-3)
--- SECTION: 36 ---
mGH
--- SECTION: 37 ---
JK
--- SECTION: 38 ---
mKM
استعد للدرس اللاحق
حل كلاً من المعادلات الآتية:
--- SECTION: 39 ---
15 = ½ [(360 - x) - 2x]
--- SECTION: 40 ---
x + 12 = ½ [(180 - 120)]
--- SECTION: 41 ---
x = ½ [(180 - 64)]
وزارة التعليم
الدرس 5-8 المماسات 215 of MI
2025 - 1447
--- VISUAL CONTEXT ---
**DIAGRAM**: Untitled
Description: A geometric diagram showing two circles, labeled R and S. Circle R has its center labeled R and a radius of 6 units. Circle S has its center labeled S and a radius of 4 units. A line segment PQ is drawn as a common external tangent to both circles, touching circle R at point P and circle S at point Q. A horizontal line connects the centers R and S. Vertical lines are implied from P and Q to the line connecting R and S, forming a rectangle and a right triangle for calculation purposes. The distance between centers R and S is not explicitly given in the diagram.
Context: Used for a geometry problem to find the length of the common external tangent PQ between two circles with given radii.
**DIAGRAM**: Untitled
Description: A geometric diagram showing two circles, labeled A and B, and an external point X. From point X, three tangent segments are drawn: XW, XZ, and XY. The problem statement clarifies that XZ and XW are tangents to circle A, and XZ and XY are tangents to circle B. This implies XZ is a common external tangent segment, and XW and XY are also tangent segments from X to the respective circles. The diagram visually represents these tangent segments originating from point X and touching the circles at points W, Y, and Z.
Context: Used for a geometry problem to explain why tangent segments from an external point to a circle are congruent, even when dealing with two different circles.
**DIAGRAM**: Untitled
Description: A triangle is shown with two sides explicitly labeled as 12 cm each. The angle included between these two 12 cm sides is labeled as 60°. This configuration indicates an equilateral triangle, meaning all three sides are 12 cm.
Key Values: [object Object], [object Object], [object Object]
Context: Used for a geometry problem to calculate the perimeter of the triangle. Since it's an isosceles triangle with a 60° included angle, it's equilateral, so the perimeter is 3 * 12 cm = 36 cm.
**DIAGRAM**: Untitled
Description: A circle is shown with its center labeled L. Points J and K are on the circumference, forming an arc JK. An inscribed angle is shown with its vertex on the circumference, subtending arc JK, and its measure is 62°. The question asks for the measure of arc JK.
Context: Used for a geometry problem applying the relationship between an inscribed angle and its intercepted arc (arc measure = 2 * inscribed angle).
**DIAGRAM**: Untitled
Description: A circle is shown with points A, B, and C on its circumference. An arc AC is explicitly labeled with a measure of 122°. An inscribed angle ∠ABC is formed by chords AB and BC, and it subtends arc AC. The question asks for the measure of angle B (m∠B).
Context: Used for a geometry problem applying the relationship between an inscribed angle and its intercepted arc (inscribed angle = 1/2 * arc measure).
**DIAGRAM**: Untitled
Description: A circle is shown with points V, W, and X on its circumference. A chord VX is drawn. An inscribed angle ∠VWX is formed by chords VW and WX, and its measure is 14°. This angle subtends arc VX. The question asks for the measure of arc VX (mVX).
Context: Used for a geometry problem applying the relationship between an inscribed angle and its intercepted arc (arc measure = 2 * inscribed angle).
**DIAGRAM**: Untitled
Description: A circle is shown with its center labeled F. Points G, H, J, K, and M are on the circumference. A chord GK is drawn. A radius FJ is shown. A chord HM is shown. The accompanying text provides additional information: GK = 14 cm and mGK = 142°. This diagram is used for multiple questions (36, 37, 38) which require finding measures of other arcs and segments based on the given information.
Context: Used for geometry problems involving relationships between chords, arcs, and radii in a circle, requiring calculations based on given lengths and arc measures.