the surface area of a cuboid is 340m^2 if it's breadth is 8m and height is 5m then find it's length
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Emily5576
10.12.2019
Math
Secondary School
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A cuboid is 10m long and 5m high. Its surface area is 340m square. Find its breadth.
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Step-by-step explanation:
Surface area of cuboid = 340m
length= 10m and height = 5m
Now,
surface area of cuboid = 2(lb+bh+lh)
340 = 2(10*b+5*b+10*5)
340/2 = 10b + 5b + 50
170-50 = 15 b
120/15 = b
8 = b
Therefore, the breadth of the cuboid is,b = 8m
Step-by-step explanation:
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