Proof: Basic Proportionality Theorem | Class 10 CBSE NCERT скачать в хорошем качестве

Proof: Basic Proportionality Theorem | Class 10 CBSE NCERT

In this lesson, we dive into the Basic Proportionality Theorem (Thales’ Theorem), an essential topic in Class 10 Geometry (Triangles, NCERT Chapter 6). This theorem states that if a line is drawn parallel to one side of a triangle, intersecting the other two sides at distinct points, it divides those sides in the same ratio. ✨ 📌 Learn two different proofs of this theorem: 1️⃣ The standard NCERT textbook approach. 2️⃣ A simpler method using properties of similar triangles. 👉 If you find this video helpful, don’t forget to like 👍, share, and subscribe to Sunny Sensei for more engaging and educational math lessons! Sunny Sensei Maths channel on WhatsApp: https://whatsapp.com/channel/0029VaEF... 🎓📘 Additional Geometry Proofs for Practice 🎓📘 🎯 Parallelogram Diagonal Theorem: A diagonal divides a parallelogram into two congruent triangles. 👉   • Proof: A diagonal divides a parallelogram ...  👈 🎯 Tangent and Radius Perpendicularity - Circle Theorem: The tangent at any point of a circle is perpendicular to the radius through the point of contact. 👉   • Proof: The tangent at any point of a circl...  👈 🎯 Basic Proportionality Theorem: If a line is drawn parallel to one side of a triangle, intersecting the other two sides at distinct points, it divides those sides in the same ratio. 👉   • Proof: Basic Proportionality Theorem | Cla...  👈 🎯 AAA Criterion for Similarity of Triangles: If the corresponding angles of two triangles are equal, then their corresponding sides are in the same ratio, and the triangles are similar. 👉   • Proof of AAA Criterion for Similarity of T...  👈 🎯 Central Angle Theorem: The angle subtended by an arc at the center is double the angle subtended by it at any point on the remaining part of the circle. 👉   • Central Angle Theorem | Class 9 | CBSE | P...  👈 🎯 Base Angles Theorem: Angles opposite to equal sides of an isosceles triangle are equal. 👉   • Proof: Angles opposite to equal sides of a...  👈 🎯 Midpoint Theorem: In a triangle, the line segment joining the midpoints of two sides is parallel to the third side and half as long. 👉   • Midpoint Theorem | Class 9 | Class 10 | Pr...  👈 🎯 Pythagoras or Pythagorean Theorem: In a right-angled triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. 👉   • Pythagoras Theorem | Pythagorean Theorem |...  👈 🎯 The Ratio of Areas of Similar Triangles: The ratio of the areas of two similar triangles is equal to the square of the ratio of their corresponding sides. 👉   • Ratio of the Areas of Similar Triangles | ...  👈