Find the distance from the midpoint of one of the side of a square of length 10cm to either end of the opposite side

Question

Its about Pythagoras theorem..... diatnace formula and square   roots

Answer 1

So the square is 10 by 10.  Therefore half of a side is 5.

 

5^2 + 10^2 = x^2

25 + 100 = x^2

125 = x^2

11.18 = x