Maharashtra State BoardSSC (English Medium) 9th Standard
Advertisement Remove all ads

What Will Be the Cost of Making a Closed Cone of Tin Sheet Having Radius of Base 6 M and Slant Height 8 M If the Rate of Making is Rs.10 per Sq.M ? - Geometry

Sum

What will be the cost of making a closed cone of tin sheet having radius of base 6 m and slant height 8 m if the rate of making is
Rs.10 per sq.m ?

Advertisement Remove all ads

Solution

Radius of the base of cone, r = 6 m
Slant height of the cone, l = 8 m
∴ Total surface area of the cone = πr(r + l) = `22/7` x 6 x ( 6 + 8 ) = `22/7` x 6 x 14 = 264 m2

Rate of making the cone of tin sheet = Rs 10/m2
∴ Total cost of making the cone of tin sheet
= Total surface area of the cone × Rate of making the cone of tin sheet
= 264 × 10
= Rs 2640

Thus, the cost of making the cone of tin sheet is Rs 2640.

  Is there an error in this question or solution?
Advertisement Remove all ads

APPEARS IN

Balbharati Mathematics 2 Geometry 9th Standard Maharashtra State Board
Chapter 9 Surface Area and Volume
Practice Set 9.2 | Q 4 | Page 119
Advertisement Remove all ads
Advertisement Remove all ads
Share
Notifications

View all notifications


      Forgot password?
View in app×