K = 2πr
88 = 2 × 22/7 × r
88 × 7 = 2 × 22 × r
616 = 44r
r = 616 ÷ 44
r = 14 m
Lp = 2(pl + pt + lt)
Lp = 2(15 × 7 + 15 × 5 + 7 × 5)
Lp = 2(105 + 75 + 35)
Lp = 2(215)
Lp = 430 cm²
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Nomor 1:
Diketahui:
Ditanyakan:
Dijawab:
K = 2πr
88 = 2 × 22/7 × r
88 × 7 = 2 × 22 × r
616 = 44r
r = 616 ÷ 44
r = 14 m
Nomor 2:
Diketahui:
Ditanyakan:
Dijawab:
Lp = 2(pl + pt + lt)
Lp = 2(15 × 7 + 15 × 5 + 7 × 5)
Lp = 2(105 + 75 + 35)
Lp = 2(215)
Lp = 430 cm²
#LearnWithPanda