d R = K ÷ π = 6,28 ÷ 3,14 = 2
d T = K ÷ π = 12,56 ÷ 3,14 = 4
= R : T = 6,28 : 12,56 = 2 : 4
Jawab:
L = L Toni - L Rudi = 12,56 - 3,14 = B. 9,42cm2
L Rudi = π × r × r = 3,14 × 1 × 1 = 3,14
L Toni = π × r × r = 3,14 × 2 × 2 = 12,56
maaf kalau slh:))
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d R = K ÷ π = 6,28 ÷ 3,14 = 2
d T = K ÷ π = 12,56 ÷ 3,14 = 4
= R : T = 6,28 : 12,56 = 2 : 4
Jawab:
L = L Toni - L Rudi = 12,56 - 3,14 = B. 9,42cm2
L Rudi = π × r × r = 3,14 × 1 × 1 = 3,14
L Toni = π × r × r = 3,14 × 2 × 2 = 12,56
maaf kalau slh:))