18.4k views
5 votes
Your new job requires you to calculate the material costs for manufactured goods. One of goods you manufacture is a fabric sample in the shape of a circle. Given the formula A = r², find the area (A) of the fabric sample whose radius (r) is 8.4 x 100 ft. Round your answer to the nearest thousandth. (Use 3.14 for π)

User Leacroft
by
8.5k points

1 Answer

4 votes

Solution.

Given that the fabric sample is in a shape of a circle


Area\text{ of a circle =}\pi r^2
Given\text{ that r=8.4 x 10}^0\text{ ft}
\begin{gathered} Area\text{ of the circle = }\pi\text{ x \lparen8.4 x 10}^0\text{\rparen}^2 \\ Area=\text{ 3.14 x 8.4 x 8.4} \\ Area\text{ = 221.5584ft}^2 \\ Area\text{ of the fabric=221.558ft}^2(nearest\text{ thousandth\rparen} \end{gathered}

The answer is 221.558 ft^2

User Rebolon
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories