Question

What is the value of x

Answer 1

it's an isosceles right triangle, x is the ipotenuse so

√(7² + 7²) =
√(49 + 49) =
√98 = 9.89 (rounded 9.9)

Answer 2

x = 7 / sin(45)

x = 7 / sqrt(2)/2

x = 7 sqrt(2)