Question

I need help plz no links

Answer 1

6

Explanation:

From the pythagorean theorem the square lenght of hypotenuse is equal to sum of square lenght of base and side

(6.5)^2 = x^2 + (2.5)

42.25 = x^2 + 6.25 subtract 6.25 from both sides

36 = x^2 and x = 6