Question

The area of a circle is 3.14 square centimeters. Find the diameter.

Answer 1

Answer:

2cm

Step-by-step explanation:

Use basic formula for Area of circle

Answer 2

Answer:

d. 2.0 cm

Step-by-step explanation:

Given:

• The area of a circle = 3.14 cm²

To Find:

• What is the diameter?

Solution:

$area \: of \: circle = \pi {r}^{2} \\ = > 3.14 = 3.14 \times {r}^{2} \\ = > {r}^{2} = \frac{3.14}{3.14} \\ = > {r}^{2} = 1 \\ = > r = \sqrt{1} \\ \: \: \: \: \: r = 1 \: cm$

Radius of circle = 1 cm

Diameter = 2 × radius = 2 × 1 = 2 cm

Therefore, the diameter of the circle = 2.0 cm