Question

Tính diện tích xung quanh và diện tích toàn phần của hình hộp chữ nhật biết chiều dài 4/5m,chiều rộng 1/3m và chiều cao 1/4m.

Answer 1

Chu vi đáy là : ( 4/5 + 1/3 ) x 2 = 34/15 ( m )

Diện tích xung quanh là : 34/15 x 1/4 = 34/60 ( m 2)

Diện tích hai mặt đáy là : 4/5 x 1/3 x  2  = 8/15 ( m2 )

Diện tích toàn phần là : 8/15 + 34/60 = 11/10 ( m2 )

Answer 2

S_xq = (4/5 + 1/3) x 2 x 1/4 = 17/30 (m²)

S_tp = 17/30 + (4/5 x 1/3) = 23/30 (m²)

Answer 3

diện tích xung quanh=17/30

diện tích toàn phần=11/10

Answer 4

lam gop duoc ko

 

Answer 5

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Answer 6

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Answer 7

Hello

Hello

Hello

Hello

Hello

Answer 8

Ai làm người yêu tớ ko

 

Answer 9

Nhà tớ giàu nhất cái tỉnh Lào Cai này luôn