Multiple Choice Please select the best answer and click subm

Multiple Choice: Please select the best answer and click \"submit.\" What is the length of side s of the square shown below 2 sqrt 6 6 sqrt 2 6 3 3 sqrt 2

Solution

Let x be angle ie x=45 , adjacent side = s, hypotenuse = 6

by pythagorous theorem cosx = adjacent side / hypotenuse

cos45 = s / 6

1/sqrt2 = s / 6

s = 6*(1/sqrt2)

s = 3*sqrt2