Question

15. The length of a room is twice its breadth. Its height is 5 m. The area of its four walls (inclus and windows) is 210 sq. m. Find its volume. ​

Answer 1

Answer:

490 m^3

Step-by-step explanation:

let breadth be x.

length = 2x

h = 5 m

area of four walls = 2( l+b )*h

210 = 2 (2x+x)*5

210 = 2*3x*5

21 = 3x

x = 7

length = 2*7 = 14m

volume = l*b*h

= 14*7*5

= 490 m^3

Answer 2

Answer:

$volume = {490{m} }^{2}$

Explanation: In attachment...

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