Question

the Length breadth and the height of a rectangular solid are in the ratio 5 is to 4 is to 2 if the total surface area is 1216 centimetres square find the Length breadth and the height of the solid

Answer 1

Hey user...

Let the angle be 5x,4x nd 2x.
TSA=2(lb +bh +hl)=1216
2(20x²+8x²+10x²)=1216
76x²=1216
x²=1216/76
x²=16
x=4cm.

Dimensions are 20cm,16cm nd 8cm.

Volume=lbh
=>20*16*8
=2560cm².

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Hope this will help u
:-)

Answer 2

I think it will help u definitely