Angle Relationships (Sec 10-1)

Question 1

Which statements are true? Check all that apply.

Revolt · Accepted Answer

m = 120°; m∠COB = 2(m∠CAB); m∠COB = 120°

Question 2

Use the diagram to complete the statements.

Revolt · Accepted Answer

✔ one-half; The measure of angle EJB is the measure of angle BOE.: one-half; The measure of angle BDE is the measure of angle BOE.: 180 minus; The measure of angle OED is the measure of angle OBD.: equal to

Question 3

4590✔ 180360

Revolt · Accepted Answer

✔ 180; The measure of central angle LOP is °.: 180; The length of LP is units.: 17; The length of MP is units.: 15

Question 4

What is the measure of angle WZY?

Revolt · Accepted Answer

71°

Question 5

Use the diagram to complete the statements.

Revolt · Accepted Answer

✔ 109; The measure of minor arc EF is °.: 109; The measure of angle DAB is °.: 54.5

Question 6

Which statements are true? Check all that apply.

Revolt · Accepted Answer

The circumscribed angle L has a measure of 49°.; If the measure of arc HJ is 98°, the measure of angle HMJ is 98°.; If the measure of arc HJ is 98°, the measure of arc HK is 131°.

Question 7

What is the measure of angle OAC if major arc AB measures 220 degrees?

Revolt · Accepted Answer

55°

Question 8

✔ all radii of the same circle are congruentall right angles are congruenttangents to a circle that intersect are congruentof the reflexive property

Revolt · Accepted Answer

✔ all radii of the same circle are congruent; We are given that angle AOB is a central angle of circle O and that angle ACB is a circumscribed angle of circle O. We see that AO ≅ BO because .: all radii of the same circle are congruent; We also know that AC ≅ BC since .: tangents to a circle that intersect are congruent; Using the reflexive property, we see that .: side CO is congruent to side CO; Therefore, we conclude that △ACO is congruent to △BCO by the .: SSS congruency theorem

Question 9

What is the perimeter of kite OBDE?

Revolt · Accepted Answer

38 units

Angle Relationships (Sec 10-1) Answers

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