Question 83

Height 'h' of a cylinder equals the circumference of its base. Then, the curved surface area in terms of 'h' is:

Solution

According to question,

$$h=2\pi r.$$

or,$$r=\frac{h}{2\pi\ }.$$

So, curved surface area=$$2\pi r\times h=2\pi\ \times\frac{h}{2\pi\ }\times h=h^2.$$

A is correct choice.

Create a FREE account and get:

Download RRB Study Material PDF
45+ RRB previous papers with solutions PDF
300+ Online RRB Tests for Free

CAT Quant Questions | CAT Quantitative Ability

CAT Mensuration Questions CAT Averages Questions CAT Linear Equations Questions CAT Venn Diagrams Questions CAT Percentages Questions

CAT DILR Questions | LRDI Questions For CAT

CAT Quant Based DI Questions CAT Arrangement Questions CAT Data Interpretation Basics Questions CAT Quant Based LR Questions CAT Puzzles Questions

CAT Verbal Ability Questions | VARC Questions For CAT

CAT Miscellaneous Questions CAT Verbal Ability Questions CAT Para Jumbles Questions CAT Odd One Out Questions CAT Para Summary Questions

Follow us on

Boost your Prep!

Download App