arrow
arrow
arrow
The diameter of a right circular cylinder is 14 cm and height is 2 cm. The sum of its curved surface area and the total surface area is: (Use π=2
Question

The diameter of a right circular cylinder is 14 cm and height is 2 cm. The sum of its curved surface area and the total surface area is: (Use π=227\pi = \frac{22}7​​

A.

484 cm²

B.

308 cm²

C.

176 cm²

D.

968 cm²

Correct option is A

Given:
Diameter of a right circular cylinder = 14 cm and height is 2 cm
Formula Used:
Surface Area of right circular cylinder = 2πrh
Total surface area of the right circular cylinder = 2πr(r+h)
Solution:
Surface Area of right circular cylinder = 2πrh

=2×227×7×2=88= 2 \times \frac{22}{7} \times 7 \times 2 = 88 \\[15pt]​​
​Total surface area of the right circular cylinder = 2πr(r+h)

2×227×7×(7+2)=396 2 \times \frac{22}{7} \times 7 \times (7 + 2) = 396 \\[15pt]cm2cm^2​​

Now, Sum = 396 + 88 = 484cm2cm^2

Free Tests

Free
Must Attempt

SSC GD PYP (Held on 4 Feb 2025 S1)

languageIcon English
  • pdpQsnIcon80 Questions
  • pdpsheetsIcon160 Marks
  • timerIcon60 Mins
languageIcon English
Free
Must Attempt

Hindi Section Test 1

languageIcon English
  • pdpQsnIcon20 Questions
  • pdpsheetsIcon40 Marks
  • timerIcon12 Mins
languageIcon English
Free
Must Attempt

SSC GD Constable Full Mock Test 1

languageIcon English
  • pdpQsnIcon80 Questions
  • pdpsheetsIcon160 Marks
  • timerIcon60 Mins
languageIcon English
test-prime-package

Access ‘SSC GD’ Mock Tests with

  • 60000+ Mocks and Previous Year Papers
  • Unlimited Re-Attempts
  • Personalised Report Card
  • 500% Refund on Final Selection
  • Largest Community
students-icon
368k+ students have already unlocked exclusive benefits with Test Prime!
Our Plans
Monthsup-arrow