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hitunglah keliling lingkaran yang berukuran
a. r = 7 cm
b. r = 15 cm
c. d = 21 cm
d. d = 30 cm
hitunglah keliling lingkaran yang berukuran
a. r = 7 cm
b. r = 15 cm
c. d = 21 cm
d. d = 30 cm
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=2×22/7×7
=44cm
b. K=2×π×r
=2×3.14×15
=94,2 cm
c. k=2×π×r
=2×22/7×10,5
=66 cm
d= k=2×π×r
=2×3,14×15
=94,2 cm
keliling = 2 × 22/7 × 7 = 44cm
b. r = 15cm
keliling = 2 × 22/7 × 15 = 94,28cm
c. d = 21cm
keliling = 22/7 × 21 = 66cm
d. d = 30cm
keliling = 22/7 × 30 = 94,28cm