Question

Find x, the missing side length in the right triangle 18 8

Answer 1

A^2 + B^2 = C^2
18^2 + 8^2 = 388
C = 20

Answer 2

19.7

Explanation:

a^2+b^2=c^2

so 18^2+8^2=x^2

324+64=388

x is about 19.7