Circumference and Arc Length Answers

Which statements are true? Check all that apply.

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.

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

8.516.5✔ 1734

8✔ 151720

What is the measure of angle WZY?

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

35.5✔ 54.571109

Which statements are true? Check all that apply.

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

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 .

side CA is congruent to side CBside AO is congruent to side BO✔ side CO is congruent to side COside AB is congruent to side CO