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diagonal = 25 m
lebar = √diagonal² - panjang²
= √25² - 24²
= √625 - 576
= √49 = 7 m
keliling tanah = 2 x (p+l)
= 2 x (24 + 7)
= 2 x 31
= 62 m
lebar = l
dan diagonal = d
maka
d² = p² + l²
25² = 24² + l²
l² = 625 - 576
l² = 49
l = √49
l = 7 cm
Keliling = 2(p+l) = 2 (24+7) = 2.31 = 62 cm