find the area of the given circle. Round to the nearest 10th. 3.5 CM.
38.5 cm^2
if that is the radius, then A = πr^2 = 12.25π = 48.5 cm^2
If it is the diameter, then multiply that by 4.
To find the area of a circle, you can use the formula:
Area = π * (radius)^2
Given that the radius of the circle is 3.5 cm, we can substitute this value into the formula:
Area = 3.14 * (3.5 cm)^2
Calculating this equation, we get:
Area ≈ 3.14 * (3.5 cm)^2
≈ 3.14 * 12.25 cm^2
≈ 38.465 cm^2
Rounding this answer to the nearest tenth, the area of the circle is approximately 38.5 cm^2.
To find the area of a circle, you can use the formula: A = πr^2, where A represents the area and r represents the radius of the circle.
In this case, you were given the radius of the circle as 3.5 cm. So, you can substitute this value in the formula and calculate the area.
A = π(3.5 cm)^2
A = π(12.25 cm^2) [Squaring the radius]
A ≈ 3.14159 × 12.25 cm^2 [Using the value of π, which is approximately 3.14159]
A ≈ 38.484975 cm^2 [Calculating the value]
A ≈ 38.5 cm^2 [Rounding to the nearest 10th]
Therefore, the area of the given circle, rounded to the nearest 10th, is approximately 38.5 cm^2.