What is the total surface area in cm2 of a cylinder having radius of base as 7 cm and height as...........

Quantitative Aptitude (CPO) Mensuration 3D

What is the total surface area (in cm²) of a cylinder having radius of base as 7 cm and height as 15 cm?

814

616

968

780

To find the total surface area of a cylinder, use the formula: \( 2\pi r(h + r) \).

- Given values:

- Radius \( r = 7 \) cm.

- Height \( h = 15 \) cm.

- Calculation:

- Total surface area = \( 2\pi \times 7 \times (15 + 7) \).

- Total surface area = \( 2\pi \times 7 \times 22 \).

- Total surface area = \( 308\pi \).

- Approximate value:

- \( \pi \approx 3.14 \).

- Total surface area ˜ \( 308 \times 3.14 = 967.12 \) cm².

- Options:

- Option 1: 814 cm².

- Option 2: 616 cm².

- Option 3: 968 cm².

- Option 4: 780 cm².

The closest integer to 967.12 is 968. .

Submit Error