the surface area of cube = 252 square cm.It lenght and breadth are 8cm ,7cm respectively. Find height
Answers
Answered by
2
Answer:
height = 4.66 cm
Step-by-step explanation:
I think you meant the surface area of a CUBOID is 252 cm^2 since for a cube, length = breadth = height = side of the cube.
Given :
T. S. A. = 252 cm^2
Length = 8 cm
Breadth = 7 cm
T. S. A. of a cuboid = 2( lb + lh + bh)
ATQ;
2( 56 + 8h + 7h) = 252
=> 56 + 8h + 7h = 126
=> 15h = 70
=> h = 4.66
Therefore,
height of the cuboid = 4.66 cm
Answered by
0
Answer:
6cm
Step-by-step explanation:
since, area of cuboid = 2[LB+BH+LH]
⇒252=2[8*7 + 7*H + 8*H]
⇒252/2= 56 + 7H +8H
⇒126-56=15H
⇒70/15=H
⇒4.66cm=H
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