Question

The area of a circle is equal to 1 dm². Find the radius of the circle.

Answer 1

To find the radius of a circle given the area, you can rearrange the formula A = πr² and solve for r.

Step-by-step explanation:

To find the radius of a circle given its area, we can rearrange the formula for the area of a circle: A = πr². In this case, the area is given as 1 dm². We can plug this value into the formula and solve for the radius:

A = πr²

1 dm² = πr²

Dividing both sides by π, we get:

r² = 1 dm²/π

Taking the square root of both sides, we get:

r = √(1 dm²/π)

Calculating this, we find that the radius of the circle is approximately 0.564 dm.

Answer 2

The radius of circle is 0.17 meters

Step-by-step explanation:

Since Area of circle is given as

Area of circle = pi * r²

So putting the values

0.1 m² = 3.14 * r²

0.1 / 3.14 = r²

0.031 = r²

Taking square root on both sides

r = 0.17 metres