Question

(10) In a right triangle ABC, right angled at B, AC = 29 cm and BC = 20 cm. Find the length of AB.
​

Answer 1

Given :

• AC = 29cm
• BC = 20cm

To Find :

• AB = ?

Solution :

(Perpendicular)² = (Hypotenuse)²- (Base)²

so,

( AB)² = ( AC)² - (BC)²

(AB)² = (29)² - (20)²

(AB)² = 841 - 400

(AB)² = 441

AB = √441

AB = 21

Length = 21