Question

Help me out, please....

Answer 1

Answer: D

Explanation:

Using Pythagoras’ theorem

H^2= O^2 + A^2

H= 10

O= 5

A= x

A^2= H^2 - O^2

x^2= 10^2 - 5^2

x^2= 100 - 25

x^2= 75

x= 75^(1/2)

x= 5(3^(1/2))

x= 5 √3

Answer 2

5 radical 3

Explanation:

b = √c2 - a2

= √102 - 52

= √75

= 8.66025 = 5√3