Math, asked by ssparanjape07, 1 day ago

The length and width of a cuboid are in the ratio 3:4. If the height of the cuboid is 21 cm and its volume is 6300 cm3, complete the following statements.
The length of the cuboid is __ cm.
The width of the cuboid is __ cm.

Answers

Answered by BrainlistPrince
0

Answer:

let length of cuboid be 3x and breadth be 4x

volume of cuboid=lbh=3x×4x×21=6300

12x²=6300/21=300

x²=300/12

x²=25

x=25 only

so length=3x=3×25=75cm

breadth/widht=4x=4×25=100cm

Answered by srushtikdesai
1

Answer:

the length is 15 cm.

the breadth is 20cm.

Step-by-step explanation:

Let the length be 3x and width be 4x.

volume of a cuboid = l*b*h

so, 3x*4x*21 = 6300cm3

12x^{2} = 6300/21

12x^{2} = 300

x^{2} = 300/12

x^{2} = 25

x = \sqrt{x}25

x = 5cm

Hence, 3*5 = 15cm

4*5 = 20cm

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