3 years ago

PLEASE HELP ASAP!!!!!!!

Mathematics

1 answer:

love history [14]3 years ago

8 0

Answer:

(a) Because it is an exterior angle

(b) The measure of angle 2 is 72°

Step-by-step explanation:

Angle 2 is an exterior angle because it is adjacent to the interior angle 1, and an exterior angle is equal to the sum of the measures of the two nonadjacent interior angles:

<2=30°+42°

<2=72°

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