Question

What is the value of x?

a. 7
b. 7√2
c. 14
d. 14√2

Answer 1

14

I took the test

Answer 2

Note that sin 45 deg = opposite side / hypotenuse.

1 7sqrt(2)
Here, sin 45 deg = ----------- = --------------
sqrt(2) x

Cross multiplying, we get x = 7 [sqrt(2) ]^2 = 7(2) = 14 (answer)