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Strike441 [17]
3 years ago
8

What is the reason for step 5 in this proof

Mathematics
1 answer:
Deffense [45]3 years ago
4 0

Answer:

Angle addition and the definition of a straight angle

Step-by-step explanation:

The definition of a straight angle is that that any straight angle must measure 180 degrees, Because youre adding the 3 angles of the graph your perfoming and angle addition and as they must measure 180 degrees, the three angles follow the rule of a straight angle.

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