Jawaban:
1. r = 20cm
luas = π r²
= 3.14 x 20²
= 3.14 x 20 x 20
= 1256 cm²
2. d = 60 cm
r = 30 cm
= 3.14 x 30²
= 3.14 x 30 x 30
= 2826 cm²
1.
Luas = π r²
Luas = 3,14 × 20 × 20
Luas = 1.256 Cm²
2.
Luas = 1/4 π d²
Luas = 1/4 × 3,14 × 60 × 60
Luas = 2.826 Cm²
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Jawaban:
1. r = 20cm
luas = π r²
= 3.14 x 20²
= 3.14 x 20 x 20
= 1256 cm²
2. d = 60 cm
r = 30 cm
luas = π r²
= 3.14 x 30²
= 3.14 x 30 x 30
= 2826 cm²
1.
Luas = π r²
Luas = 3,14 × 20 × 20
Luas = 1.256 Cm²
2.
Luas = 1/4 π d²
Luas = 1/4 × 3,14 × 60 × 60
Luas = 2.826 Cm²