Penjelasan dengan langkah-langkah:
Jari-jari (r) = 7 cm
π (pi) = ²²/7
--
Luas lingkaran
L = π × r²
L = ²²/7 × 7 cm²
L = ²²/7 × 7 cm × 7 cm
L = 22 × 1 cm × 7 cm
L = 22 cm × 7 cm
L = 154 cm²
- ࿐
Jawaban:
154cm
Luas
= π x r x r
= 22/7 x 7 x 7
= 22/7 x 7cm x 7cm
= 22 x 7cm
= 154cm
π x r x r
Rumus keliling :
π x D
atau 2 x π x r
keterangan :
π = phi (22/7 ,atau 3,14)
D = diameter
r = jari jari
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Penjelasan dengan langkah-langkah:
Jari-jari (r) = 7 cm
π (pi) = ²²/7
--
Luas lingkaran
L = π × r²
L = ²²/7 × 7 cm²
L = ²²/7 × 7 cm × 7 cm
L = 22 × 1 cm × 7 cm
L = 22 cm × 7 cm
L = 154 cm²
- ࿐
Jawaban:
154cm
Penjelasan dengan langkah-langkah:
Luas
= π x r x r
= 22/7 x 7 x 7
= 22/7 x 7cm x 7cm
= 22 x 7cm
= 154cm
Rumus luas :
π x r x r
Rumus keliling :
π x D
atau 2 x π x r
keterangan :
π = phi (22/7 ,atau 3,14)
D = diameter
r = jari jari