CIRCLE BASICS and TANGENTS

Which of the following is a true statement?

• A tangent intersects a circle at two distinct points.

• A tangent line might be perpendicular to the radius containing the circle center and the point of tangency.

• A point of tangency is the intersection between two tangent lines.

• A tangent intersects the circle at exactly one point.

Which of the following is a chord of circle E?

• segment EK

• segment HE

• segment ET

• segment MJ

What is the measure of arc AC?

• 25°

• 115º

• 155º

• 125º

Find the length of segment DC to the nearest tenth of a centimeter.

• 9.7 cm

• 12.1 cm

• 9.8 cm

• 12.0 cm

If AB=8, AE=19, and CE=17, what is the measure of segment BC?

• 6 units

• 8 units

• 8.5 units

• 11 units

Tags

CCSS.HSG.C.A.2

An angle whose vertex is the center of a circle is a(n) ______.

• inscribed angle
• acute angle
• obtuse angle
• central angle

Tags

CCSS.HSG.C.A.2

An angle whose vertex is on a circle and whose sides contains chords of the circle is _______

• an inscribed angle
• a central angle
• an obtuse angle
• a semicircle

Tags

CCSS.HSG.C.A.2

Which shows a tangent line?

• 
• 
• 
• 

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

If a line is tangent to a circle, then it is ________ to the radius drawn to the point of tangency.

• parallel

• adjacent

• supplementary

• perpendicular

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4

Determine if a tangent line is shown in the picture.

• Yes

• No

• Not sure

Tags

CCSS.HSG.C.A.2

CCSS.HSG.C.A.4