Skip to content
Related Articles

Related Articles

Improve Article

QA – Placement Quizzes | Mensuration 3D | Question 8

  • Last Updated : 28 Jun, 2021

A hemisphere and a cone have equal bases. If their heights are also equal, then the ratio of their curved surfaces will be:
(A) 1:2
(B) 2:1
(C) 1:2^0.5
(D) 2^0.5:1

Answer: (D)

Explanation: Let r be the radius of the hemisphere and the cone. Given,
Height of Cone = Radius of Hemisphere = r
Slant height of Cone = √(r²+ r²) = √2r
Ratio of their Curved Surfaces = Hemisphere/Cone
= 2 * π * r² / π * r * √2r
= √2:1.

Quiz of this Question
Please comment below if you find anything wrong in the above post

My Personal Notes arrow_drop_up
Recommended Articles
Page :