Question

Will receive medal for exact answer!

The length of a diagonal of a large square garden is 15 yards. What is the approximate length of one side of the square garden?



A.
8.6 yards

B.
10.6 yards

C.
21.2 yards

D.
25.9 yards

Answer 1

Explanation and answer preferred please

Answer 2

You could use pythagorean theorem:
\[a ^{2}+b^{2}=c ^{2}\]
c = 15 so work backwards

Answer 3

let x be the edge of cube.Then
x^2+x^2=15^2
2x^2=15^2
x^2=(15^2)/2=2(15/2)^2
x=(15/2)sqrt2=(15/2)(1.414)=15*0.707=10.605 yards