Cari jari-jari lingkaran:
K = 2πr
132 = 2 × 22/7 × r
132 = 44/7 × r
r = 132 × 7/44
r = 21 cm
Panjang tali
= Keliling lingkaran + 4r
= 132 cm + 4(21) cm
= 132 cm + 84 cm
= 216 cm
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Cari jari-jari lingkaran:
K = 2πr
132 = 2 × 22/7 × r
132 = 44/7 × r
r = 132 × 7/44
r = 21 cm
Panjang tali
= Keliling lingkaran + 4r
= 132 cm + 4(21) cm
= 132 cm + 84 cm
= 216 cm