A window is in the form of trapezium whose parallel sides are 105 cm and 50 cm respectively and the distance between the parallel sides is 60 cm. find the cost of the glass used to cover the window at the rate of rupees 15 per 100 sq.cm
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Answer: Rs 697.5
Step-by-step explanation:
Area of a trapezium= h/2x Sum of parallel sides
=60/2x (105+50)
=30x 155
=4650 sq. cm
Cost per 100 sq. cm=15
So, cost for 1 sq. cm= Rs 15/100
So,cost for 4650 sq. cms= 15/100 x 4650
= Rs 697.5
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