Question

[tran thang duy]

1 hinh thoi co tong do dai hai duong cheo la 120 m . Tinh dien tich  hinh thoi do , biet ti so giua do dai duong  lon va do dai duong cheo be la 3 phan 2

Answer 1

[Nguyen Trung Nguyen]

Gia tri 1 phan la: 120:(3+2)=24(m)

Duong cheo lon la:  24*3=72(m)

Duong cheo be la:   24*2=48(m)

Dien h la:   72*48/2=1728(m2)

        Dap so : ......