The height of the conical tent is 5m and the radius of base is 12 m , then find is slant height and the cost price of the canvas used to make the tent , if its price is rs. 70 per square meter.
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Answer :
1. 13 m
2.₹ 34288 .
Step-by-step explanation:
Given : h = 5 m
r = 12 m
To Find : slant height
Rate of total canvas
Solution :
1. slant height = l = √h2 + r2
= √ 5 × 5 + 12 ×12
= √ 25 + 144
= √ 169
= 13 m
2. Total canvas required = Curved surface area
canvas = π r l
= 3.14 × 12 × 13
= 489.84 m2
3. Rate = ₹ 70 per metre
Rate = 489.84 × 70
Rate = ₹ 34288.8
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