Radius of the Circle: 10.5 cm

To find the area of a circle, we need to use the formula:

Area = π * r^2

where π (pi) is a mathematical constant approximately equal to 3.14159, and r is the radius of the circle.

Step 1: Calculate the square of the radius

To find the area, we first need to calculate the square of the radius. In this case, the radius is 10.5 cm, so we square it:

10.5 cm * 10.5 cm = 110.25 cm^2

Step 2: Multiply the square of the radius by π

Next, we need to multiply the square of the radius by π (pi). In this case, π is approximately equal to 3.14159:

110.25 cm^2 * 3.14159 ≈ 346.36 cm^2

Step 3: Round the answer to an appropriate number of decimal places

Since the radius was given as 10.5 cm, it is reasonable to round the area to two decimal places:

Area ≈ 346.36 cm^2

Conclusion: The area of the circle with a radius of 10.5 cm is approximately 346.36 cm^2.

Π *10.5*10.5
22/7 * 110.25
Area =346.50