Question

The leg of a right triangle is 4 units and the hypotenuse is 9 units. What is the length, in units, of the other leg of the triangle
1)97 square root
2)97
3)65 square root
4)65

Answer 1

3) 65 square root is the answer

Answer 2

$H^{2} = a^{2}+ b^{2}$
$9^{2} = 4^{2} + b^{2}$
81=16+$b^{2}$
81-16=$b^{2}$
65=$b^{2}$
b=$\sqrt{65}$
b= 8.06 units