Question

the dimensions of a solid are in the ratio 5:4:2. if the total surface area is 9196cm square find the length, breath, height
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Answer 1

Answer:

x=11,l=55,b=44,h=22

Step-by-step explanation:

let ratios be 5x,4x,2x

total surface area of solid =2(ab+bc+ca)

so,using this

=2(5x×4x+4x×2x+2x×5x)=9196

=40x^2+16x^2+20x^2=9196

=76x^2=9196

=x^2=9196÷76

=x^2=121

x=11.

so,length=55,width=44,height=22.

Thanks..