the dimensions of a rectangular solid are in ratio 4:3:2 and its total surface area is 1300 sq unit .find its length breadth and height
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total surface area of cuboid=2(lb+bh+hl)
2(4x×3x+3x×2x+2x×4x)
2(12x^2+6x^2+8x^2)
2(26x^2)
52x^2=1300
x^2=1300/52
x^2=25
x=5
hence,l=4×5=20m
b=3×5=15m
h=2×5=10m
2(4x×3x+3x×2x+2x×4x)
2(12x^2+6x^2+8x^2)
2(26x^2)
52x^2=1300
x^2=1300/52
x^2=25
x=5
hence,l=4×5=20m
b=3×5=15m
h=2×5=10m
Answered by
1
length:577.6
breath:433.2
height:288.8
breath:433.2
height:288.8
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