A room is 6.5m broad,3.4m high.It has2 doors, each measuring 1.5m X1m and 2 Windows, each measuring 2m x1m.Find the cost of painting its four walls at rs160 per m sq.
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Wall
b = 6.5 m
h = 3.4 m
Door
length = 1.5 m
b = 1 m
Windows
length = 2 m
b = 1 m
Area Wall-Area Door - Area Windows = Area of painting
4*6.5*3.4 - 2*1.5*1 - 2*2*1 = Area Painting
⇒ 13*6.8 - 3 - 4
⇒ 88.4 -7
⇒81.4 m² is the area of painting the walls.
Cost of painting 1 m² = Rs. 160
Cost of painting 81.4 m² = Rs. 81.4*160
⇒ Cost of Painting the walls is Rs. 13024.
Thank you.....!!!!
Mark as brainliest of helpful..
Yours, Jahnavi.
b = 6.5 m
h = 3.4 m
Door
length = 1.5 m
b = 1 m
Windows
length = 2 m
b = 1 m
Area Wall-Area Door - Area Windows = Area of painting
4*6.5*3.4 - 2*1.5*1 - 2*2*1 = Area Painting
⇒ 13*6.8 - 3 - 4
⇒ 88.4 -7
⇒81.4 m² is the area of painting the walls.
Cost of painting 1 m² = Rs. 160
Cost of painting 81.4 m² = Rs. 81.4*160
⇒ Cost of Painting the walls is Rs. 13024.
Thank you.....!!!!
Mark as brainliest of helpful..
Yours, Jahnavi.
bjahnavi:
Thanks
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