You can use the CPCTC (Corresponding Parts of Congruent Triangles are Congruent) property. This means that when two triangles are congruent, all the corresponding parts are congruent to each other.
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Answer:
9
Step-by-step explanation:
9 is 3/4*12.
Answer:
90
Step-by-step explanation:
3/1=3
30x3=90
