Question

Find the missing side of the triangle

Answer 1

Answer:

Explanation:

a^2 + b^2 = c^2

7^2 + b^2 = 9^2

49 + b^2 = 81

b^2 = 81 - 49

b^2 = 32

b^2 = 5.65 or sqrt rt of 32

Answer 2

x = 4
`√(2)`

Explanation:

Pytago:

x
`x^(2) +7^(2) = 9^(2) \\\\x = \sqrt{9^(2) - 7^(2) } x = 4√(2)`