It is SAS because
1) it is given that sides are equal (AB=CD)
2)it is also given that angles B and C are equal
3) BC is a common side so it is equal in both triangles.
answer: SAS
Answer:
D.) 57
Step-by-step explanation:
x=o
in other words the two angles are equal
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Step-by-step explanation:
Given,
Yearly movie rental cost = $231
Registration fee = $15
1 year = 12 months
Let,
x be the fee per month.
12x+15=231

Dividing both sides by 12

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Keywords: subtraction, division
Learn more about division at:
#LearnwithBrainly
Answer:
X=45
Step-by-step explanation:
45+3x=180
180-45=135
135/3=45
x has to be 45
x=45
How do people......I just don't understand this