kak tolong bantu jawab mksiiii
Penjelasan dengan langkah-langkah:
a. FOD = 120°/2 = 60°
b. FDO = 90°–60° = 30°
c. Lj.DOE = 120/360 x 22/7 x 21 x 21
= 22 x 21 x 21/21
= 462 cm²
d. OF = 21 x ⅓ = 7 cm
e. DF = 7x2 = 14 cm
f. Luas OED = 7x14/2 = 49 cm²
g. luas diarsir = 462 – 2x49 = 364 cm²
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