Area of a Circle and a Sector

Question 1

Which statements are true? Check all that apply.

Revolt · Accepted Answer

A: m = 120°; C: m∠COB = 2(m∠CAB); D: m∠COB = 120°

Question 2

Use the diagram to complete the statements. The measure of angle EJB is the measure of angle BOE. The measure of angle BDE is the measure of angle BOE. The measure of angle OED is the measure of angle OBD.

Revolt · Accepted Answer

B: one-half

Question 3

The measure of central angle LOP is °. The length of LP is units. The length of MP is units.

Revolt · Accepted Answer

C: 180

Question 4

What is the measure of angle WZY?

Revolt · Accepted Answer

B: 71°

Question 5

Use the diagram to complete the statements. The measure of minor arc EF is °. The measure of angle DAB is °.

Revolt · Accepted Answer

D: 109

Question 6

Question 6

Revolt · Accepted Answer

A,C,E

Question 7

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

Revolt · Accepted Answer

A: 55°

Question 8

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 . We also know that AC ≅ BC since . Using the reflexive property, we see that . Therefore, we conclude that △ACO is congruent to △BCO by the .

Revolt · Accepted Answer

A: all radii of the same circle are congruent

Question 9

equal toone-halftwice✔ 180 minus

Revolt · Accepted Answer

D: 180 minus

Question 10

Question 10

Revolt · Accepted Answer

C: 17

Area of a Circle and a Sector Answers

More from this Course

TRY EDGENUITY HACKS