Question

1. In a right triangle, the length of the hypotenuse is 20 inches and the length of one leg is 15 inches. What

is the length of the other leg in inches?
A. 5
B. 5√ 7
C. 25
D. √ 7

Answer 1

i hope this helps you

Answer 2

B. 5√ 7

Step-by-step explanation

When solving the lengths of a right triangle we use either the trigonometric ratio or the pythagoras theorem.

c² = a² + b²

Where a and b are the legs of the triangle and c is the hypotenuse.

20² = 15² + b²

b² = 20² - 15²

= 400 - 225

= 175

b = √175

= √(25 × 7)

= 5√7 inches