Estimate the area of the circle. Use 3.14 or 22/7 for pie. There is a circle with a line through the center which reads '28cm'
We know that the line through the center (also called the diameter) is 28 cm. The formula for the area of a circle is A = πr^2, where r is the radius (which is half of the diameter). So the radius of this circle would be 14 cm.
Using π ≈ 3.14:
A ≈ 3.14 x (14 cm)^2
A ≈ 3.14 x 196 cm^2
A ≈ 615.44 cm^2
Using π = 22/7:
A = (22/7) x (14 cm)^2
A = (22/7) x 196 cm^2
A ≈ 615.44 cm^2
Therefore, we estimate that the area of the circle is approximately 615.44 square cm.