Question

The area of a circle is 88.44 cm² find the length of the radius rounded to 2 DP

Answer 1

The radius of the circle is 5.30 cm.

What is a radius?

A radius is a line that extends from the center of a circle to any point of the circumference.

To calculate the length of the radius of the circle, we use the formula below.

Formula:

• A = πr²......... Equation 1

Make r the subject of the equation

• r = √(A/π).................. Equation 2

Where:

• A = Area of the  circle
• r = Radius of the circle
• π = Pie

From the question,

Given:

• A = 88.44 cm²
• π = 22/7

Substitute these values into equation 2

• r = √(88.44/(22/7))
• r = √(88.44×7/22)
• r = √(28.14)
• r = 5.30 cm

Hence, the radius of the circle is 5.30 cm.

Learn more about radius here: brainly.com/question/24375372

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