Question

a room is 15m long and 10m broad. if the area of its 4 walls is 350m square , find the height of the room. pls find the answer fast and solve step by step

Answer 1

★Given:-

• Length of room = 15m
• Breadth of room = 10m
• Area of four walls = 350m²

★To find:-

• The height of room.

★Solution:-

Using the formula,

✦Area of the 4 walls = perimeter of the floor ×height

Putting values,

➻Area of 4 walls = 2(l+b)×h

➻350 = 2(15+10) h

➻350 = 2(25) h

➻350 = 50h

➻h = 350/50

➻h = 7m

Therefore,height of the room is 7m.

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More area formula's:-

• Cube=6a²
• Rectangular prism=2(wl+hl+hw)  
• Cylinder=2πr(r + h)  
• Cone = πr(r + l)
• Sphere = 4πr²
• Hemisphere=3πr²

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