Geometry
Name ______________________
Period ___________
Date ___________
Day 3 – Angles and Angle Relationships
Write two names for the angle shown. Then name the vertex and sides of the angle.
1.
2.
Classify the angle with the given measure as acute, obtuse, right, or straight.
3. mA = 115°
4. mA = 85°
5. mA = 90°
6. mA = 180°
Give another name for the angle in the diagram. Tell whether the angle appears to be acute,
obtuse, right, or straight.
7. LKJ
8. JLK
9. MKL
10. JML
11. Use the given information to find
the indicated angle measure.
Given mABC = 94°, find mCBD
12. In the diagram, BD bisects ABC.
Find mABC.
1 and 2 are complementary angles and 2 and 3 are supplementary angles. Given the
measure of 1, find m2 and m3.
13. m1 = 80
14. m1 = 76
15. m1 = 12
Find mABC and mCBD.
16.
17.
Find the values of x and y.
18.
A and B are complementary angles.
Find mA and mB.
19. mA = x°
mB = (2x – 75)°
A and B are supplementary angles.
Find mA and mB.
20. mA = (2x + 3)°
mB = (3x – 223)°
In Exercises 8–12, use the diagram. Tell whether the angles are vertical angles, a linear pair,
or neither.
21. 6 and 7
22 5 and 8
23.2 and 3
244 and 9
254 and 5