The slan height and base diameter 25m and 14m respectively .Find the cost of whitewashing its curved surface at Rs. 200 per 100msquare
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The slan height and base diameter 25m and 14m respectively .Find the cost of whitewashing its curved surface at Rs. 200 per 100msquare
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Answer:
"The slant height of the conical tomb is 25 m and the base diameter is 14 m.
The curved surface area of a right circular cone of base radius(r) and slant height(l) is πrl
Slant height, l = √r2 + h2, where h is the height of the cone.
Diameter, d = 14 m
Radius, r = 14/2 m = 7 m
Slant height, l = 25 m
Curved surface area = πrl
= 22/7 × 7 m × 25 m
= 550m2
Cost of the whitewashing at ₹ 210 per 100 m2
= (210/100) × 550 = ₹ 1155
Thus, the cost of whitewashing the conical tomb is ₹1155. "
Answer:
"The slant height of the conical tomb is 25 m and the base diameter is 14 m.
The curved surface area of a right circular cone of base radius(r) and slant height(l) is πrl
Slant height, l = √r2 + h2, where h is the height of the cone.
Diameter, d = 14 m
Radius, r = 14/2 m = 7 m
Slant height, l = 25 m
Curved surface area = πrl
= 22/7 × 7 m × 25 m
= 550m2
Cost of the whitewashing at ₹ 210 per 100 m2
= (210/100) × 550 = ₹ 1155
Thus, the cost of whitewashing the conical tomb is ₹1155. "
Answer:
"The slant height of the conical tomb is 25 m and the base diameter is 14 m.
The curved surface area of a right circular cone of base radius(r) and slant height(l) is πrl
Slant height, l = √r2 + h2, where h is the height of the cone.
Diameter, d = 14 m
Radius, r = 14/2 m = 7 m
Slant height, l = 25 m
Curved surface area = πrl
= 22/7 × 7 m × 25 m
= 550m2
Cost of the whitewashing at ₹ 210 per 100 m2
= (210/100) × 550 = ₹ 1155
Thus, the cost of whitewashing the conical tomb is ₹1155. "