Lines and Angles and Circles

135° 145° 35° 45°

• 135°

• 145°

• 35°

• 45°

Tags

CCSS.8.G.A.5

Which of the following names a radius?

• segment AC

• segment DB

• segment AB

• segement BC

What is the part of the circle highlighted in red called?

• semi-circle arc

• major arc

• minor arc

• sector

What is the part of the circle highlighted in red called?

• semi-circle arc

• major arc

• minor arc

• sector

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.A.2

The image shows a circle centered at point O. Angle AOB measures 50 degrees. What is the measure of angle ACB? (a)  

• 25 degrees

• 40 degrees

• 50 degrees

• 100 degrees

Tags

CCSS.HSG.C.A.2

Find the value of x.

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.A.2

Think about if the angles are equal or if they add up to 180. Solve for x. Plug it in.

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.B.5

Solve for x:

Mathematical Equivalence

ON

Tags

CCSS.HSG.C.A.2

A chord is a segment that connects ___________

• the center to the endpoint

• to one point outside the circle

• a central angle

• 2 endpoints of a circle