Question
Math 7B Unit 5 Study Guide
If the area of a circle is 78.5 cm squared, what is the radius of the circle? Use 3.14 for m
If the area of a circle is 78.5 cm squared, what is the radius of the circle? Use 3.14 for m
Answers
GPT 3.5
To find the radius of the circle, you can use the formula for the area of a circle:
A = πr^2
Given that the area of the circle is 78.5 cm^2, we can plug that into the formula:
78.5 = 3.14r^2
Now, solve for the radius:
r^2 = 78.5 / 3.14
r^2 = 25
r = √25
r = 5
Therefore, the radius of the circle is 5 cm.
A = πr^2
Given that the area of the circle is 78.5 cm^2, we can plug that into the formula:
78.5 = 3.14r^2
Now, solve for the radius:
r^2 = 78.5 / 3.14
r^2 = 25
r = √25
r = 5
Therefore, the radius of the circle is 5 cm.