tolong jawab pake cara ya

[tex] {30}^{2} + {22.5}^{2} = {ac}^{2} [/tex]
900+ 506,25 = ac^2
[tex]ac = \sqrt{900 + 506.25} [/tex]
ac = 37,5 (D)

22,5x22,5=506,25
30x30. = 900
______+
1406,25 : 37,5 = 37, 5