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A side of the triangle below has been extended to form an exterior angle of 74°. Find the value of x.​

A side of the triangle below has been extended to form an exterior angle of 74°. Find-example-1
User Msc
by
7.1k points

2 Answers

13 votes

Answer:

106

Explanation:

x+49=74

x=74-49=25

y=74=180

y=180-74=106

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User Arutha
by
7.5k points
7 votes

Answer:

Explanation:

The adjacent angle to the missing angle must sum to 180 degrees. So a=180-74=106 degrees. The sum of the three angles of the triangle must also sum to 180.

x+49+106=180

x+155=180

x=25

User Matt Gartman
by
7.0k points