Circles test review

Question 1: m<TVU=?

100

Question 12: What is the sector area of the shaded region? Leave in terms of pi and round to the nearest tenth or leave as a reduced fraction.

16/3 pi cm2

Question 2: The radius of a circle is 9 meters. What is the length of a 30 degree arc?

3/2

Question 10: Circle Q has a radius of 5 units with center Q (3.7, -2). Which of the following equations defines circle Q?

4

Question 8: Lines AC and AB are tangent to circle O as shown below. If m<COB= 134 degrees, what is the measure of <CAB?

46 degrees

Question 5: What is the radius of this circle?

6

Question 7: The circle is shown below is centered as the origin and contains the point (-4,-2). Which of the following is the closest to the length of the diameter of the circle?

8.94

Question 11: Using the following equation, find the center and radius of the circle: x^2-12x+y^2+=-21

center (6,-7) radius 8

Question 9: The proof

the measure of an inscribed angle is half the measure of its intercepted arc; substitution

Question 3: Write the equation of this circle in standard form.

x, y, 9

Question 4: Write the equation of this circle in standard form.

x, y-3, 9