Circle Unit Test

Find the area of the shaded sector of circle O.  The radius is 6 inches and the central angle is 100°.  Express answer to the nearest tenth of a square inch.

• 9.2 sq. in.

• 10.5 sq. in.

• 31.4 sq. in.

• 38.2 sq. in.

Tags

CCSS.HSG.C.B.5

Find the area of the dark blue sector shown at the left.  The radius of the circle is 4 units and the length of the arc (the curved edge of the sector) measures 7.85 units.  Express answer to thenearest tenth of a square unit.

• 0.3 square units

• 15.7 square units

• 19.7 square units

• 50.3 square units

Tags

CCSS.HSG.C.B.5

Find the length of the bold arc.

• 61.3ft

• 20.4ft

• 7351.3ft

• 22,068ft

Tags

CCSS.HSG.C.B.5

Determine if line AB is tangent to the circle.

• Tangent

• Not Tangent

Find x

• 10

• 5

• 18

• 9

Tags

CCSS.HSG.C.A.2

In a circle (or congruent circles), chords that are the same distance from the center:

• are similar

• have the same name

• are congruent to each other

• are walking dead

What best describes segment AB?

• chord

• secant

• tangent

• diameter

A segment/chord that runs through the center of the circle (the longest chord).

• Chord

• Diameter

• Radius

• Inscribed Angle

Which of the following is most similar to the circumference of a circle?

• Area

• Perimeter

• Volume

• Surface Area

Tags

CCSS.7.G.B.4

Which of the following is true about the diameter of a circle?

• It is always half of the radius

• It is always twice the radius

• It is always equal to the circumference

• It is always twice the circumference

Tags

CCSS.HSG.C.A.2