22. Perhatikan gambar berikut. 14 cm 14 cm Luas daerah tersebut adalah ... cm2 a. 462 C. 724 b. 560 d. 812 9-
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Jawaban:
560 cm²
Penjelasan dengan langkah-langkah:
L = 3/4•π•r² + 1/2•a•t
= 3/4•22/7•14•14 + 1/2•14•14 cm
= 3/4•22•2•14 + 1/2•14•14 cm
= 3/4•616 + 1/2•196 cm
= 462 + 98 cm
= 560 cm²