Question
Find the cost of canvas 1.75 m wide at Rs. 50 per metre
required to build a conical tent of base radius 21 cm and height 28 cm.Solution
Here, r = 21 cm and h = 28 cm  Slant height, l = 35m Area of the tent =Area of canvas = 
rl = (  X 21 X 35)m² = 2310m² ∴ Length of canvas=   =  = 1320 m. ∴ Cost of canvas= 1,320 x 50 = Rs. 66,000
More Mensuration Questions
- Which letter and number cluster will replace the question mark (?) to complete the given series?
LT6, KU12, IW24, FZ48, ____ - Which letter-cluster will replace the question mark (?) in the following series?
RGV, UME, ?, AYW, DEF - Which letter-cluster will replace the question mark (?) in the following series?
NPQR, OORQ, PNSP, ____, RLUN - A series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.
57, 59, 56, 61, 54, ___ - Select the number from among the given options that can replace the question mark (?) in the following series.
17, 18, 22, 31, 47, ___
