The perimeter of a floor of a room is 18m What is the area of four walls of the room, if height is 3m?
- 42 m²
- 21m²
- 54m²
- none of these
Explanation
54 m²
∴ The area of the four walls of the room is 54 m2.
Think of the floor as a square. Suppose the wall is 20 feet long. Multiply 20 by 4 to get a circumference of 80 feet. Double the width and length measurements and add them to calculate the perimeter of the rectangular room.
Related MCQs
- LW+LH+WH
- 2(LW+LH+WH)
- Lx Wx H
- 2(L+W+H)
اس سوال کو وضاحت کے ساتھ پڑھیں
- 118 m²
- 138 m²
- 158 m²
- 178 m²
اس سوال کو وضاحت کے ساتھ پڑھیں
- 66.5 m²
- 76.5 m²
- 56.5 m²
- 133 m²
اس سوال کو وضاحت کے ساتھ پڑھیں
- 1.15%
- 3.07%
- 2.01%
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
- 300
- 400
- 500
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
