the floor of the circular swimming pool whose radius is 7 cm has to be cemented @ rupees 18 per metre square find the total cost of the cement in the floor
Answers
If the floor of circular swimming pool with 7 cm radius is cemented at a rate of Rs. 18 per m^2 then the total cost of cementing the floor is Rs. 0.2772.
Step-by-step explanation:
The radius of the floor of the circular swimming pool, r = 7 cm = 0.07 m
∴ The area of the floor of the swimming pool is,
= πr²
= (22/7) * (0.07)²
= 0.0154 m²
It is also given that the floor is cemented at the rate of Rs. 18 per meter square.
Thus,
The total cost of the cementing the floor is,
= 0.0154 m² * Rs. 18
= Rs. 0.2772
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