Answer:
If two sides and the included angle of one triangle are equal to the corresponding sides and angle of another triangle, the triangles are congruent
Step-by-step explanation:
Answer:
b
Step-by-step explanation:
3,6,9,12,15,18
15+3=18
-72=-9s-45 also equals -9s-45=-72
-9s - 45 + 45 = - 72 + 45
-9s = - 27
-9s/-9 = -27/-9
s = 3
Hope this helped!