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3 years ago

~ HELP NEEDED!!!! 20 POINTS ~

Mathematics

1 answer:

sladkih [1.3K]3 years ago

6 0

Answer:

Here is a proof

Angle DEF = angle ABC

A transversal cutting two parallel lines makes alternate exterior angles equal

Sum of measures of angles 1 and 2 = 50° + 48° = 98° = measure of angle DEF = measure of angle ABC

But since s bisects angle ABC, then angle 4 = 98 / 2 = 49°

But angles 3 and 4 are vertical angles....therefore.... measure of angle 3 = 49°

Step-by-step explanation:

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3 years ago

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3 years ago

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Step-by-step explanation:

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