The front wall of a house has door 2m*1m, two Windows 1m*7m, a ventilator 5 DM*5dm. If the wall is in the form of the rectangle 5m*4m with a triangle on it with base 5m and altitude 2m, find the cost of whitewashing the front wall at the rate of $20 per sq.m and painting the door,windows and the ventilator at the rate of $ 40 per sq. M

Front wall= 400
Others= 570
Total= 970
 
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The front of a house has a door 2m and 1m,two windows 1m and 7dm
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I hope it's the right answer

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