The dimensions of a cuboid are in the ratio 5:3:1 and it's total surface area is 414m.sq. Find the dimensions.
Answers
Answered by
0
Heya mate!
Here's your answer
Here's your answer
Attachments:
Answered by
0
Total surface area of cuboid = 2(lb+bh+hl)
= 2(5x × 3x +3x × 1x + 1x × 5x)
= 2(15x² + 3x² + 5x² )
414cm² = 2(23x²)
414cm²/2 = 23x²
x = √207/23
x = 3
now lenght = 5 × 3 = 15m
breath = 3 × 3 = 9m
height = 1 × 3 = 3m
hope it helps you
make it the brainleast!!!
= 2(5x × 3x +3x × 1x + 1x × 5x)
= 2(15x² + 3x² + 5x² )
414cm² = 2(23x²)
414cm²/2 = 23x²
x = √207/23
x = 3
now lenght = 5 × 3 = 15m
breath = 3 × 3 = 9m
height = 1 × 3 = 3m
hope it helps you
make it the brainleast!!!
Similar questions