Geo Q4 Test 1

One

100

Find the circumference of a circle with a diameter of 10 feet. Round your answer to the nearest tenth.

31.4 ft

200

Find the center and radius of the circle given the equation below. Write the center as an ordered pair and the radius as a number. Give an exact answer or one rounded to two decimal places if necessary.

(x+8)^2+(y+1)^2=6

(-8,-1)

sqrt6

300

AC is a diameter of the circle. Find the measure of major arc ACD.

233^o

400

A circle with circumference 2232 has an arc with a length of 31. Find the central angle of the arc, in degrees.

5^o

500

Find the area of the shaded sector given the radius and central angle. Give your answer in terms of pi or as a decimal rounded to two decimal places.

 

13.40 or 

4.27pi

Dos

100

Find the area of the circle with a radius of 7 centimeters. Round your answer to the nearest tenth.

153.9 cm²

200

Graph the circle given the standard equation.

(x+4)^2+(y-5)^2=9

300

A circle with circumference 81 has an arc with a 40^o angle. What is the length of the arc?

9

400

A circle has an arc of length 21 with central angle 20^o. Find the circumference of the circle.

378

500

A sector has radius 16 and central angle 88^o. Find the area of the sector. Give your answer in terms of pi or as a decimal rounded to two decimal places.

196.49 or 

62.58pi