Penjelasan dengan langkah-langkah:
L = πr²
L = 3,14 × 3,5²
L = 3,14 × 12,25
L = 38,465
Maka, luasnya adalah 38,465 cm²
7/2 = 3,5
L = π × r × r
L = 22/7 × 3,5 × 3,5
L = 22/7 × 12,25
L = 38,5 cm²
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Penjelasan dengan langkah-langkah:
L = πr²
L = 3,14 × 3,5²
L = 3,14 × 12,25
L = 38,465
Maka, luasnya adalah 38,465 cm²
7/2 = 3,5
L = π × r × r
L = 22/7 × 3,5 × 3,5
L = 22/7 × 12,25
L = 38,5 cm²