Q). A heap of rice is in the form of cone base diameter 24 m and height 3.5 m. Find the volume of the rice. How much canvas cloth is required to just cover the heap?
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Radius of conical heap=12m. volume of rice=1÷3×22÷7×r×r×h=1÷3×22÷7×12×12×3.5=528m^3. area of canvas cloth required =curved surface area of cone=pi×r×l. l=(root of (12×12+3.5×3.5)=12.5m. area of canvas required = 22÷7×12×12.5=471.4m^2. is the answer.
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Answer:
Step-by-step explanation:
Diameter of cone = 24 m
Height of cone = 3.5 m
Volume of cone = 1/3 π r2 h
1/ 3 * 22/7 * 12 * 12 * 3.5
528 m3
Now to find the cloth required to just cover the he will find the CSA of cone
l = √r2 + h2
L = √ (12)2 + (3.5)2
L = √ 144 + 12.25
L = √ 156.25
hope it will help somebody
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