Question

Hình thang có đáy lớn là 40cm, cạnh đáy bé bằng 60% cạnh đáy lớn. Biết diện tích hình thang bằng 0,272 m2. Tính độ dài đường cao của hình thang đó

Answer 1

mk ko biết

Answer 2

Cạnh đáy bé của hình thang dài là:

40:100x60=24(cm)

Trung nình cộng của 2 đáy là:
(40+24):2=32(cm)

0,272m²=2720cm²

Chiều cao hình thang là:
2720:32=85(cm)

Chúc bạn may mắn!!!

Answer 3

Đổi 40 cm = 0,4 m

Đáy bé của hình thang đó là:

0,4 : 100 x 60 = 0,24 ( m )

Tổng của đáy bé và đáy lớn là:

0,4 + 0,24 = 0,64 ( m )

Độ dài đường cao của hình thang đó là:

0,272 x 2 : 0,64 = 0,85 ( m )

Đáp số: 0,85 m

Answer 4

Đáp số:85 cm đúng 100%

Answer 5

Tìm hai số biết thương giữa hai số ấy bằng 0,0625 và hiệu gữa hai số ấy là 7,5 .

Answer 6

0,85 đúng 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000099