Question

please help me. I have 1 question. thank you.

Answer 1

b/10 = 6/8
b = 10*6 / 8
b = 60/8
b = 15/2

a^2 = ( 15/2)^2 - 6^2
a^2 = 225/4 - 36
a^2 = 225/4 -144/4
a^2 = 81/4
a = 9/2

answer is A
a = 9/2, b = 15/2

Answer 2

a = 9/2; b = 15/2 so answer A