Monday

November 24, 2014

November 24, 2014

Posted by **mike** on Tuesday, May 8, 2007 at 10:38pm.

Find the circumference and area of a circle that has a rectangle inscribed inside it with sides that are 9 by 12 centimeters. Write your answer as decimals rounded to the nearest hundredth. (hint: Draw this circle on your paper and find the length of the diagonal of the rectangle.)

you should know that Area = πr^2

and circumference is 2πr

and clearly the diameter is 2r

ao πr2=64

r = 8/√π

evaluate using your calculator and substitute in the above expressions.

Round off AFTER you have substituted,not before.

For your second question they have given you an excellent hint.

I will give you one more...

the radius of the circle is half the length of the diagonal of the rectangle.

- Circumference and Area of Circles -
**J.Feliciano**, Monday, January 5, 2009 at 5:32pma 9x12 rectangle has diagonals of

d = (9^2 + 12^2) = 225 = 15

since these diagonals are also the diameter off the circle

A = (d/2)^2 = (15/2)^2 = 176.7

C = d = (15) = 47.123

- Circumference and Area of Circles -
**J.Feliciano**, Monday, January 5, 2009 at 5:34pma 9x12 rectangle has diagonals of

d = square root of(9^2 + 12^2) = square root of 225 = 15

since these diagonals are also the diameter off the circle

A = pi (d/2)^2 = pi (15/2)^2 = 176.7

C = pi times d = pi(15) = 47.123

- Circumference and Area of Circles -
- Circumference and Area of Circles -
**S. Creel**, Friday, April 24, 2009 at 12:27amThis question Find the circumference and area of a circle that has a rectangle inscribed inside it with sides that are 9 by 12 centimeters. Write your answer as decimals rounded to the nearest hundredth. (hint: Draw this circle on your paper and find the length of the diagonal of the rectangle.) is copyrighted material of Florida Virtual School. Please remove it and any solutions.

- Circumference and Area of Circles -
**J.Marks**, Wednesday, August 18, 2010 at 5:27pmNone of these are correct! Try doing your own work instead of copying off of stupid people that don't understand math!!!

- Circumference and Area of Circles -
**stefany martinez**, Tuesday, March 1, 2011 at 5:52pmwaht do we do on circumfrence?

**Answer this Question**

**Related Questions**

MATH HOMEWORK - Find the circle circumference and circle area with a circles ...

math - Okay. So i'm doing this project for my geometry class about different ...

math - I'm asked to find the circumference of a circle to the nearest tenth and ...

Geometry - A circle with a radius of 1/2 ft is dilated by a scale factor of 8. ...

math - how do you find the diameter of a circle if you don't have the radius? ...

Algebra - The Circumference and area of a circle of radius r are givin by 2 [pie...

Circumference - Find the circumference and area of cirlce with a radius of 3 ...

Math - Two perpendicular diamters(cutting each other at right angles) of a ...

Math - The area of a rectangle is shown below The area of the rectangle is 56 ...

geometry - 1. Find the area of the parallelogram. (1 point) 3,302 ft2 3,484 ft2 ...