Find the approximate length of the leg of a right triangle with one leg length 8 and hypotenuse length 19.

Question

20.3

20.6

17.7

17.2

Answer 1

Use the Pythagorean theorem,

 

h² = a² + b²

 

hypotenuse = h

leg 1 = a

leg 2 = b

 

You are given;

 

h = 19 and a = 8

 

(19)² = (8)² + b²

 

361 = 64 + b²

 

361 - 64 = b²

 

297 = b²

 

√(297) = b