Geometry: Circles

In the equation (x+2)²+(y-3)²=4, the radius of the circle is...

• 4

• 2

• 3

• 16

Write the equation of a circle with center (7, 0) with radius 3.

• (x - 7)² + y² = 9

• x² + (y -7)² = 9

• (x - 7)² + y² = 3

• x² + (y -7)² = 3

Find the measure of angle BDC.

• 35

• 40

• 75

• 110

What part of the circle is present?

• Tangent

• Secant

• Chord

• Diameter

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

What is the value of x?

• x = 160

• x = 40

• x = 80

• x = 360

If the measure of arc ABC = 210°, what is the measure of ∠AOC?

• 150°

• 100°

• 210°

• 105°

Which of the following names a radius?

• segment AC

• segment DB

• segment AB

• segement BC

Which of the following names a diameter?

• segment AC

• segment DB

• segment AB

• segment BC