luas persegi = s² = 24² = 576 cm²
luas belah ketupat = ½ × d1 × d2 = ½ × 24 × 24 = 288 cm²
luas daerah yang diarsir = 576 - 288 = 288 cm² (c.)
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luas persegi = s² = 24² = 576 cm²
luas belah ketupat = ½ × d1 × d2 = ½ × 24 × 24 = 288 cm²
luas daerah yang diarsir = 576 - 288 = 288 cm² (c.)
= 24² - (1/2 X 24 X 24)
= 576 - (288)
= 288cm²
No.17
Luas persegi = s² = 2025m²
s = √2025 = 45m
K = 4s = 4(45) = 180m