Question

Tolong jawab no 22-23 plisss besok dikumpulin yg jawab dapet rezeki lohh

Answer 1

Verified answer

22.
luas arsir
= 2/6 x 1/2 lingkaran
= 1/3 x 1/2 x 1/4 x π x d²
= 1/3 x 1/2 x 1/4 x 22/7 x 21 x 21
= (22 x 21 x 21)/(3 x 2 x 4 x 7)
= 11 x 21 / 4
= 57,75 m²

23.
luas total
= luas jajargenjang + luas 1/2 lingkaran
= 10 x 28 + 1/2 x 1/4 x 22/7 x 28 x 28
= 280 + 11 x 28
= 280 + 308
= 588cm²

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