1

Problem

Calculate the curved surface area of a sphere having a radius of 2 cm. Use pi =3.14.

2

Step

Given that the radius (r) of the sphere is

2 cm

3

Hint

π (pi) is a constant approximately equal to 3.14.

4

Formula

Curved Surface Area(A): \$A = 4 \times π \times r^2\$

5

Step

Plug the values into the formula:

\$A = 4 \times 3.14 \times 2^2\$

\$A = 4 \times 3.14 \times 4\$

A = 50.24

6

Solution

So, the curved surface area of the sphere with a radius of 2 cm (using pi ≈ 3.14) is 50.24 sq. units.

7

Sumup

Please summarize steps

Choices

8

Choice-A

This option is incorrect. Its value is significantly smaller than the correct option

Wrong 5.26 sq.units

9

Choice-B

This option is incorrect. Its value is significantly larger than the correct option

Wrong 52.26 sq.units

10

Choice-C

It is the correct option for a 2 cm radius sphere’s curved surface area

Correct 50.24 sq.units

11

Choice-D

This is incorrect because it’s larger than the correct value

Wrong 15.26 sq.units

12

Answer

Option

C

13

Sumup

Please summarize choices