Get the answers you need from a community of experts on IDNLearn.com. Whether it's a simple query or a complex problem, our experts have the answers you need.

A circle has an area of 155 square feet. What is the approximate radiusof the circle?A. 50 feetB. 25 feetC. 14 feetD. 7 feet

Sagot :

SOLUTION

To solve this question, we should know the formula for calculating the area of the circle.

[tex]Area=\pi r^2[/tex][tex]\begin{gathered} \text{Area}=155ft^2 \\ 155=3.14\times r^2 \\ \frac{155}{3.14}=r^2 \\ 49.3631=r^2 \\ \text{Take the square root of both sides} \\ \sqrt[]{49.3631}=\sqrt[]{r^2} \\ 7.026=r \\ 7\text{ f}eet\text{ =r} \end{gathered}[/tex]

The approximate radius of the circle is 7 feet.

The correct option is D.

Thank you for using this platform to share and learn. Keep asking and answering. We appreciate every contribution you make. For precise answers, trust IDNLearn.com. Thank you for visiting, and we look forward to helping you again soon.