What is the area of the circle? Use 3.14 for pi. 4 mm
a. 12.56 mm2
b.25.12 mm2
c. 50.24 mm2
d. 502.4 mm2
The correct answer is a. 12.56 mm2.
To find the area of the circle, we use the formula:
Area = pi x radius^2
Given, radius = 4mm and pi = 3.14
So, the area = 3.14 x 4^2
= 3.14 x 16
= 50.24 mm2
Therefore, the area of the circle is 12.56 mm2.
To calculate the area of a circle, you need to use the formula A = πr^2, where A represents the area and r represents the radius of the circle.
In this case, the radius of the circle is given as 4 mm. Therefore, you can substitute this value into the formula:
A = 3.14 * (4 mm)^2
To simplify, calculate the square of 4 mm:
A = 3.14 * 16 mm^2
Multiply 3.14 by 16 to get:
A = 50.24 mm^2
So the area of the circle is 50.24 square mm.
Therefore, the correct answer is c. 50.24 mm2.
To find the area of a circle, you can use the formula A = πr^2, where A is the area and r is the radius of the circle. In this case, the radius is given as 4 mm and π is given as 3.14.
Step 1: Square the radius.
4 mm x 4 mm = 16 mm^2
Step 2: Multiply the squared radius by π.
16 mm^2 x 3.14 = 50.24 mm^2
Therefore, the area of the circle is 50.24 mm^2.
The correct answer is c. 50.24 mm2.