Cinta23
5. Luas = × 21 cm × 21 cm = 1386 cm² Keliling = × 42 cm = 132 cm 6. L = p × l 44,8 cm² = p × 3,5 cm p = 44,8 cm² ÷ 3,5 cm = 12.8 cm K = 3.5 cm + 3.5 cm + 12,8 cm + 12,8 cm = 32,6 cm 7. K = 3,14 × D 110 cm = 3,14 × D D = 110 cm ÷ 3,14 = 35 cm r = D ÷ 2 = 35 ÷ 2 = 17.5 cm L = 3,14 cm × 17,5 cm × 17,5 cm = 961,625 cm² 8. P = 2,4 dm = 24 cm L = 24 cm × 24 cm = 576 cm²
Maaf klo salah
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athirasorjaya
makasih ka dr td bantuin pr ku mulu wkwk
Luas = × 21 cm × 21 cm = 1386 cm²
Keliling = × 42 cm = 132 cm
6.
L = p × l
44,8 cm² = p × 3,5 cm
p = 44,8 cm² ÷ 3,5 cm = 12.8 cm
K = 3.5 cm + 3.5 cm + 12,8 cm + 12,8 cm = 32,6 cm
7.
K = 3,14 × D
110 cm = 3,14 × D
D = 110 cm ÷ 3,14 = 35 cm
r = D ÷ 2 = 35 ÷ 2 = 17.5 cm
L = 3,14 cm × 17,5 cm × 17,5 cm = 961,625 cm²
8.
P = 2,4 dm = 24 cm
L = 24 cm × 24 cm = 576 cm²
Maaf klo salah
6. keliling = 163/5 = 32,6
7. Luas 962,5
8. Luas = 5,76 dm persegi