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4.The area of a circle is about 314.1593 in?. Find its circumference and round to the nearest tenth. A. Find its radius. B.

4.The area of a circle is about 314.1593 in?. Find its circumference and round to the nearest tenth. A. Find its radius. B.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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4. The area of a circle is about 314.1593 in?. Find its circumference and round to the nearest tenth. A. Find its radius. В. 5. The figure below shows a circle inside of a square. The radius of the circle is 8 cm. Use the pi key and round to the nearest whole number. А. What is the circumference of the circle? В. What is the area of the circle? C. What is the area of the square?
Transcribed Image Text:4. The area of a circle is about 314.1593 in?. Find its circumference and round to the nearest tenth. A. Find its radius. В. 5. The figure below shows a circle inside of a square. The radius of the circle is 8 cm. Use the pi key and round to the nearest whole number. А. What is the circumference of the circle? В. What is the area of the circle? C. What is the area of the square?
Expert Solution
Step 1

Given area of the circle is 314.1593 inch2.

We need to find the radius of the circle.

Let the area of the circle is πr2 where r is the radius of the circle.

πr2=314.1593(3.14)r2=314.1593r2=314.15933.14=100.0507r=10 inch

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