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= √625 - 576
= √49
= 7 cm
keliling = ( p+l ) x 2
= ( 24+7) x 2
= 31 x 2
= 62 cm
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lebar tanah² = (gunakan rumus phytagoras)
= 25² - 24² = 625 - 576 = 49
lebar tanah = √49 = 7m
keliling persegi panjang = 2x (p+l)
= 2x (24+7)
= 2 x 31 = 62m