Question

Find the length of the third side.

Answer 1

Your answer is 4

Explanation:

`a^2+b^2=c^2`

c = 2sqrt(5)

b = 2

a = length

`a^2 = c^2 -b^2\\\\a =√(c^2-b^2) \\\\a=\sqrt{(2√(5) )^2-2^2}\\\\a=√((2*2*5)-4)\\\\a=√(20-4)\\\\a=√(16)\\\\a=4`