Question

Plz be fast! The question is on the picture

Answer 1

Explanation:

It's a right angle triangle. Use c^2 = a^2 + b^2

a = 12

b = ?

c = 13

12^2 + b^2 = 13^2

144 + b^2 = 169

b^2 = 169 - 144

b^2 = 25

sqrt(b^2) = sqrt(25)

b = 5