The height of a right circular cylinder is 8 cm








The height of a right circular cylinder is 8 cm. Four times the sum of the area of its two circular faces is twice the area of its curved surface. The radius of the base is



[ A ]    3 cm
[ B ]    4 cm right
[ C ]    5 cm
[ D ]    1.5 cm
Answer : Option B
Explanation :
According to the question,

4 x 2$\pi$ $r^2$= 2 x 2$\pi$ r $\times$ 8

So,r = 4 cm
Computer Awareness Questions And Answers for competitive exams
Basic General Knowledge Questions and answers for competitive exams
General Science MCQ Questions and Answers for competitive exams
General Awareness for Bank exams Questions And Answers
General Economy Questions and Answers for competitive exams
Number and Letter series questions and answers for competitive exams
1000 general knowledge questions and answers
SSC General science MCQ GK Questions and Answers
MCQ on Indian economy questions and Answers for SSC
gk (general knowledge) questions and answers MCQ
Advertisements

Copyright 2018 | Privacy Policy | Terms and Conditions | Contact us | Advertise

@