Question

The surface area of a cuboid is 1372 sq. cm.
If it's dimensions are in the ratio of 4:2:1 . Then find its length​

Answer 1

Answer:

The surface area of the cuboid= 1372 sq. cm

Let the dimensions =4x, 2x, 1x

The total surface area of the cuboid = 2(lb+bh+hl)=1372

= 2(4x × 2x + 2x × 1x + 4x × 1x )=1372

=2(8x2+2x2+4x2) =1372

=2(14x2)= 1372

=28x2=1372

= x2=1372/28

= 49

x=7m

the dimensions are 4x=4×7=28m

2x=2×7=14m

1x=1×7=7m

hope it helps....

Answer 2

Hey aarmyyyyy u need not to thankk me....Tqsm.. for this.....But stob it....Dont hurt ur fingers