Jump to

Question 1 Surface Areas and Volumes - Exercise 13.4

**A drinking glass is in the shape of a frustum of a cone of height 14 cm. The diameters of its two circular ends are 4 cm and 2 cm. Find the capacity of the glass.**

Answer:

Radius (r_{1}) of the upper base = 4/2 = 2 cm

Radius (r_{2}) of lower the base = 2/2 = 1 cm

Height = 14 cm

Now, Capacity of glass = Volume of frustum of cone

So, Capacity of glass = (⅓)×π×h(r_{1}^{2}+r_{2}^{2}+r_{1}r_{2})

= (⅓)×π×(14)(2^{2}+1^{2}+ (2)(1))

∴ The capacity of the glass = 308 /3

= 154×(⅔) cm^{3}

Related Questions

Was This helpful?

Exercises

Chapters

Lido

Courses

Quick Links

Terms & Policies

Terms & Policies

2022 © Quality Tutorials Pvt Ltd All rights reserved