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pogonyaev
3 years ago
10

What is the measure of angles 1, 2, and 3?​

Mathematics
2 answers:
Alik [6]3 years ago
5 0
1 is 70 because the triangle has given angles of 45 and 65. If you add them you get 110 and a triangle is equal to 180° so 180-110 is 70.

2 is 65° because a line is equal to 180° as well so since 1 is 70 and being given 45, we add them to get 115 and 180-115 is 65.

3 is 95°because a triangle is equal to 180° so since 2 is 65 and being given 20°, you add those to get 85° and 180-85 is 95.
stellarik [79]3 years ago
4 0

Answer:

1=  70

2= 65

3=  95

For 1, just solve 180-(65+45) and then for 2, subtract #1 and 45 from 180. Then just solve for #3 by using 180-(#2+20)

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