3.1.2 Angles, Parallel Lines, and Transversals - Worksheet
Example 1: Find each angle measure. 1. m ∠ JKL
2. m ∠ BEF
G
127°
A
(7 x –14)°
B
L
C
x °
(4 x –19)°
E
K
J
D
F
H
3. m ∠ 1
1
Example 2: 4. The railing of a wheelchair ramp is parallel to the ramp. Find x and y in the diagram. ( Hint : Use the Alternate Interior Angles Theorem to write a system of equations and then solve.)
(5 x + 6 y )°
(4 x + 6 y )°
94°
86°
Example 3: Find each angle measure. 5. m ∠ CBY
A D
X
B
E Y Z
6 x ° (3 x + 9)°
C
139
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