Review for Circle test

Circle Review

By Victoria Smith

Directions for this review

​These questions are based on the paper circle and circle review.

I will ask you questions on how you are supposed to find the measure as if you were taking the test. I also will ask you questions that have you calculating. Some of the questions rely on past question answers so I would write down your answers.

Multiple Choice

If you were given a paper circle or using a circular food, how would you find the center of your circle?

• Lay two strings across like diameters.

• Eyeball it.

• Find the diameter with the ruler.

• Find the circumference.

Multiple Choice

After you cut a piece of pie, how would you find the central angle?

• Measure it.

• Use my protractor and line up one side with the radius and look to see where the other radius is shown on the protractor.

• Once I remove the slice of pie, I would measure the angle with my protractor and notice where the two radii intersect the protractor.

• I would guess.

Math Response

The central angle found is 52 degrees, what is the angle in radian form?

Type answer here

Correct Answer: \frac{13\pi}{45}

Deg^°

Rad

Draw

Draw where your x and y axis would like on this circle?

Math Response

If the center of your circle was (-2, 1), write the equation of your circle with the diameter of 22.86 cm. Round to the nearest tenth.

Type answer here

Correct Answer: \left(x+2\right)^2+\left(y-1\right)^2=130.6

Deg^°

Rad

Reorder

How do you find the inscribed angle? Put them in order.

• Use one of your radii and draw the diameter.

• Draw a chord from the diameter drawn down to the other radii point.

• Place your protractor on the inscribed angle point and line up the protractor on the diameter.

• Measure the acute angle that is formed with the diameter and the chord.

1

2

3

4

• 1
• 2
• 3
• 4

Math Response

If your inscribed angle is 26 degrees, write the ratio of the inscribed angle to the central angle. Write it as a fraction.

Type answer here

Correct Answer: \frac{1}{2}

Deg^°

Rad

​This is the end of your review. Your test will be Wednesday.