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2 years ago

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

Mathematics

1 answer:

schepotkina [342]2 years ago

4 0

The radius of the circle is 5.30 cm.

<h3>What is a radius?</h3>

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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<h3>What is a system of equations?</h3>

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