Jawab:
A. 77 cm²
B. 157 cm²
C. 924 cm²
Penjelasan dengan langkah-langkah:
A. 2 × ¼ lingkaran = ½ lingkaran
½ × 22/7 × 7 cm × 7 cm = 77 cm²
B. D = 20 cm r = 10 cm
½ × 3,14 × 10 cm × 10 cm = 157 cm²
C. r = 21 cm
⅔ × 22/7 × 21 cm × 21 cm = 924 cm²
Semoga membantu
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Jawab:
A. 77 cm²
B. 157 cm²
C. 924 cm²
Penjelasan dengan langkah-langkah:
A. 2 × ¼ lingkaran = ½ lingkaran
½ × 22/7 × 7 cm × 7 cm = 77 cm²
B. D = 20 cm r = 10 cm
½ × 3,14 × 10 cm × 10 cm = 157 cm²
C. r = 21 cm
⅔ × 22/7 × 21 cm × 21 cm = 924 cm²
Semoga membantu