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Answered by
0
hiiii mate here is the answer
LSA of brick= 480 cm^2
length=20cm
height 8cm
LSA=2h (l+b)
480=16+(20+b)
480=16+(20+b)
480/16=20+b
30=20+b
b=30-20
b=10 cm
10 cm is the answer
hope it may help you
LSA of brick= 480 cm^2
length=20cm
height 8cm
LSA=2h (l+b)
480=16+(20+b)
480=16+(20+b)
480/16=20+b
30=20+b
b=30-20
b=10 cm
10 cm is the answer
hope it may help you
Answered by
4
Here is your answer-
let,
l = 20cm
h = 8cm
b = ?
Now, Brick is in the shape of cuboid.
..
so,
Lateral surface area of cuboid = 2(l+b)× h
480 = 2 ( 20 + b) × 8
480 ÷ (2×8) = 20+b
30 = 20 + b
b = 120 - 30
b = 90cm
Therefore, the breadth of brick is 90cm.
Hope it helps...
let,
l = 20cm
h = 8cm
b = ?
Now, Brick is in the shape of cuboid.
..
so,
Lateral surface area of cuboid = 2(l+b)× h
480 = 2 ( 20 + b) × 8
480 ÷ (2×8) = 20+b
30 = 20 + b
b = 120 - 30
b = 90cm
Therefore, the breadth of brick is 90cm.
Hope it helps...
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