Question

What is the perimeter of this triangle above?​

Answer 1

Answer: 30

Step-by-step explanation:

a^2+b^2=c^2

a^2+5^2=13^2

(square everything)

a^2+25=169

(subtract 25 from 169)

a^2=144

(square root everything)

a=12

12+5+13=30