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11111nata11111 [884]
3 years ago
12

How do I do this? Tell me how you got the answer

Mathematics
1 answer:
kotykmax [81]3 years ago
3 0
1: supplementary means 180 degrees so subtract 30 from 180 and angle b is 150 degrees.
2: complementary means 90 degrees so subtract 49 from 90 and the second angle is 41 degrees.
3: a right angle is 90 degrees.
4: congruent means same size same shape so if the first angle is 40 degrees then the second angle would also be 40 degrees.
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