find the cost of polishing a circular pan of a diameter 28cm at a rate of cost 12.50 per sq.cm
Answers
Answer:
7700 RS/-
radius of pan=diameter/2
=28/2
=14 cm
are of pan=22/7r²
=22/7×14×14
=616cm²
cost=12.50×616
=7700
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Given,
Circular pan of a diameter 28cm
Rate of cost per sq.cm = 12.50
To find,
Cost of polishing the circular pan
Solution,
Diameter of the pan = 28 cm
Radius of the pan = 14 cm
Area of the circle (circular pan) = πr^2
Area = 22/7 *14 *14
Area = 22 *2 * 14
Area = 616 sq cm
Cost per sq cm = 12.5
Total cost = Area X cost per sq cm
Total cost = 616 * 12.5
Total cost = 7700
Hence, the cost of polishing a circular pan of a diameter 28cm at a rate of cost 12.50 per sq.cm is 7700