What is the area of the circle above? (Use 3.14 for .)
A.
31.4 sq in
B.
78.5 sq in
C.
15.7 sq in
D.
157 sq in
Circle with 5m inside it
To calculate the area of a circle, we use the formula A = πr², where A represents the area and r is the radius of the circle.
Given that the radius of the circle is 5m, we can substitute this value into the formula.
A = π(5m)²
A = π(25m²)
A ≈ 3.14 * 25
A ≈ 78.5 sq m
Therefore, the area of the circle is approximately 78.5 sq m. Thus, the correct answer is B. 78.5 sq in.
To find the area of a circle, you can use the formula: A = πr², where A is the area and r is the radius of the circle.
In this case, the radius of the circle is given as 5 meters.
Substituting the value of the radius into the formula: A = 3.14 * (5)²
Calculating: A = 3.14 * 25
A = 78.5 square meters
Therefore, the area of the circle is 78.5 square meters.
The correct answer is B. 78.5 sq in.