Question

Mot bien bao giao thong dang hinh tron co ban kinh la 30cm va mot mui ten nam trong hinh tron . Dien tich phan mui ten bang 20% dien tich hinh tron. Tinh dien tich phan con lai cua bien bao giao thong ?

Answer 1

Diện tích hình tròn là:

30 x 30 x 3,14 = 2826 (cm²)

Diện tích phần mũi tên là:

2826 x 20% = 565,2 (cm²)

Diện tích phần còn lại là:

2826 - 565,2 = 2260,8 (cm²)

Đs...

Answer 2

2260 ,8 cm²   ủng hộ mk nha

Answer 3

2260.8 cm2 ủng hộ mình nhé

Answer 4

2260,8 cm2 

mk nha bạn

Answer 5

2260.8 cm2 nha

Answer 6

2260,5 m2

tich ủng hộ mik nha

Answer 7

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