height of a cuboid is 8cm.the lenght is 12cm more than the height.the lenght and breath are in ratio 5:4.what is the total suface are of the cuboid.
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the answer is 1216 cm² and the breadth is 16 cm
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height =8cm
length =8+12=20cm
the ratio of length and width is 5:4
let the ratio be x
5x=20
x=20/5
x=4
then,
4x=4*4=16
TSA =2(lb+bh+lh)
2(20*16+16*8+20*8)
length =8+12=20cm
the ratio of length and width is 5:4
let the ratio be x
5x=20
x=20/5
x=4
then,
4x=4*4=16
TSA =2(lb+bh+lh)
2(20*16+16*8+20*8)
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