4.1.2 Angle Relationships in Triangles - Worksheet (continued)
Example 4: Find each angle measure. 9. m ∠ C and m ∠ F
10. m ∠ S and m ∠ U
A D
R
S
U
(4 x + 9)°
(5 x – 11)°
C
F
B
E
( 4 x 2 ) °
( 3 x 2 + 25 ) °
T
11. For △ ABC and △ XYZ , m ∠ A = m ∠ X and m ∠ B = m ∠ Y . Find the measures of ∠ C and ∠ Z if m ∠ C = 4 x + 7 and m ∠ Z = 3( x + 5).
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