Question

I need helpppppppppppp

Answer 1

7.5 cm

Explanation:

it is a right triangle, b=10, hypotenuse c=12.5

a^2+b^=c^2 the Pythagorean theorm

a^=c^2-b^2

a^2= 12.5^2-10^2

= 56.25

a=√56.25=7.5 cm