luas lingkaran di samping a.346.5 cm² b.693 cm² c.1039.5 cm² d.1386 cm²
Matematika
Muhammadrisky764
Pertanyaan
luas lingkaran di samping a.346.5 cm² b.693 cm² c.1039.5 cm² d.1386 cm²
2 Jawaban
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1. Jawaban yusak041
L = phi × r^2
= 22/7 × 10,5^2
= 22/7 × 110,25
= 22 × 15,75
= 346,5 cm^2 (A) -
2. Jawaban SarahNurIzzati
1/4 x PHI x D²
1/4 x 22/7 x 21 x 21
A.346,5 cm²