MAHARASHTRA Class 10: Properties of Tangents Videos | Concepts and problem solving on tangents drawn from an external point to a circle

∠TPQ and ∠TOQ are complementary angles as ∠OTP =∠OQP = 90°. 

Consider, sides of the triangle are x, y and z. x + y + z = 2 × 4 + 2 × 5 + 2 × 7 Tangents drawn from external points to a circle are equal. x + y + z = 8 + 10 + 14 = 32 

Tangents drawn from the external point to a circle are equal in length.