Draw and label the figures to show the congruent triangles

Answer:
B. x = 5
C. QD = 9
Step-by-step explanation:
B. QD = LV
2x - 1 = 9
2x = 9 + 1
2x = 10
2÷ ( 2x = 10 ) ÷ 2
x = 5
C. QD = 2x -1
= 2(5) - 1
= 10 - 1
= 9