Sure, here's how you can find the radius of the circle:

Step 1: Write down the formula for the area of a circle, which is A = πr², where A is the area and r is the radius.

Step 2: Substitute the given area and the value of π into the formula. So, 1386 = (22/7) * r².

Step 3: Solve the equation for r². To do this, divide both sides of the equation by (22/7) to get r² = 1386 * (7/22) = 441.

Step 4: Take the square root of both sides to solve for r. The square root of 441 is 21.

So, the radius of the circle is 21 cm.

Question

Sure, here's how you can find the radius of the circle:

Step 1: Write down the formula for the area of a circle, which is A = πr², where A is the area and r is the radius.

Step 2: Substitute the given area and the value of π into the formula. So, 1386 = (22/7) * r².

Step 3: Solve the equation for r². To do this, divide both sides of the equation by (22/7) to get r² = 1386 * (7/22) = 441.

Step 4: Take the square root of both sides to solve for r. The square root of 441 is 21.

So, the radius of the circle is 21 cm.

Knowee AI · Accepted Answer

Sure, here's how you can find the radius of the circle:

Step 1: Write down the formula for the area of a circle, which is A = πr², where A is the area and r is the radius.

Step 2: Substitute the given area and the value of π into the formula. So, 1386 = (22/7) * r².

Step 3: Solve the equation for r². To do this, divide both sides of the equation by (22/7) to get r² = 1386 * (7/22) = 441.

Step 4: Take the square root of both sides to solve for r. The square root of 441 is 21.

So, the radius of the circle is 21 cm.

The area of a circle is 1386 cm2. What is the radius of the circle? [Use π= 22/7]