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-The Three Angles in a Triangle Always Add Up 180∘180 ^ { \circ }

Question 20

Multiple Choice

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-The three angles in a triangle always add up to 180∘180 ^ { \circ } . If one angle in a triangle is 57∘57 ^ { \circ } and the second is 2 times the third, what are the three angles?


A) 57∘,82∘,41∘57 ^ { \circ } , 82 ^ { \circ } , 41 ^ { \circ }
B) 57∘,83∘,40∘57 ^ { \circ } , 83 ^ { \circ } , 40 ^ { \circ }
C) 57∘,80∘,43∘57 ^ { \circ } , 80 ^ { \circ } , 43 ^ { \circ }
D) 57∘,81∘,42∘57 ^ { \circ } , 81 ^ { \circ } , 42 ^ { \circ }

Correct Answer:

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