Nilai x pada gambar diatas adalah ....

[tex] {c}^{2} = {a}^{2} + {b}^{2} \\ {25}^{2} = {7}^{2} + {x}^{2} \\ 625 = 49 + {x}^{2} \\ 625 - 49 = {x}^{2} \\ 576 = {x}^{2} \\ \sqrt{576} = x \\ 24 = x[/tex]
jawaban = 24 cm (C)

x = 25²-7²
=625√-49√
=576√
= 24

semoga membantu ... :)