Skills Practice Workbook - Glencoe
Skills Practice Workbook - Glencoe
Skills Practice Workbook - Glencoe
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11–2<br />
NAME DATE PERIOD<br />
<strong>Skills</strong> <strong>Practice</strong><br />
Arcs and Central Angles<br />
Find each measure in �C if m�ACB � 80, mAF � � 45, and A�E� and F�D� are diameters.<br />
1. m�ACF 45 2. mAB<br />
� 80<br />
3. m�FCE 135 4. mEF<br />
� 135<br />
5. mABE<br />
� 180 6. m�BCE 100<br />
7. mAFE<br />
� 180 8. m�DCE 45<br />
9. mDE<br />
� 45 10. m�BCD 55<br />
11. mBAE<br />
� 260 12. mABF<br />
� 315<br />
In �A, B�D� is a diameter, m�BAE � 85, and m�CAD � 120. Determine whether each<br />
statement is true or false.<br />
13. m�BAC � 60 true<br />
14. mCD<br />
� � m�CAD true<br />
15. �ABE is a central angle. false<br />
16. m�BAC � m�DAE false<br />
17. mCED<br />
� � 220 false<br />
18. mBCD<br />
� � 180 true<br />
19. mCE<br />
� � 145 true<br />
20. m�DAE � mDE<br />
� true<br />
Q is the center of two circles with radii Q�D� and Q�E�. If m�AQE � 90 and mRE � � 115,<br />
find each measure.<br />
21. mAE<br />
� 90 22. m�RQE 115<br />
23. mAR<br />
� 155<br />
25. mAER<br />
24. m�RQA 155<br />
� 205 26. mBSD<br />
� 270<br />
27. mDS<br />
� 115 28. mBD<br />
� R<br />
S<br />
Q<br />
B<br />
A<br />
90<br />
D<br />
© <strong>Glencoe</strong>/McGraw-Hill 62 Geometry: Concepts and Applications<br />
A<br />
B<br />
F<br />
E<br />
C<br />
B<br />
E<br />
C<br />
A<br />
D<br />
E<br />
D
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