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Novay_Z [31]
2 years ago
5

Find the measure of each angle indicated. A) 21° C) 23 E) 25° B) 80° D) 20°

Mathematics
2 answers:
kvv77 [185]2 years ago
7 0

Answer:

I would say D, 20°

Step-by-step explanation:

angles on a straight line should be equal to 180°. so 180 -100 = 80° inside.

angles inside a triangle should also be 180. So, 80° + 80° =160°. to get the other angle subtract 160 from 180 to get 20°

Delvig [45]2 years ago
5 0

Answer:

D) 20⁰

Step-by-step explanation:

EDF = 180-100=80⁰

EFD= 80⁰+80⁰=160⁰

180⁰-160⁰=20⁰

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