Exit Tickets: Circle Angles, Arc Length, Sector Area

What is the measure of ∠BAC?

Enter answer only, no degrees sign.

(a)  

What kind of triangle is ΔABC?

• scalene

• isosceles

• equilateral

• right

• obtuse

If B was moved from being a point on the circle to being the center point of the circle, how would this change the measure of ∠ABC?

• it would stay the same

• it would be half as big

• it would be twice as big

• it would be 1/3 as big

• it would be three times bigger

Find the area of circle M to the nearest tenth.

• 25.13

• 50.27

• 100.53

• 201.06

Find the circumference of circle M to the nearest tenth.

• 25.13

• 50.27

• 100.53

• 201.06

What is the arc length of arc AN (in "units" not degrees)?

• 6.28

• 45

• 5.68

• 4

What is the area of the sector created by arc AN?

• 100.53

• 25.13

• 45

• 50.27

Circle P has a circumference of 28.26. What is the radius of the circle?

• 14.13

• 4.5

• 9

• 3.53

Find the arc length for a circle with a radius of 10 and a central angle of 112°.

• 62.8

• 31.4

• 19.55

• 24.35