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(High points) please find x and explain

(High points) please find x and explain-example-1
User Xiy
by
4.1k points

2 Answers

2 votes

Answer:

x = 85

Explanation:

180 - 145 = 35

35 + (x-25) + x = 180 All angles added together should equal to 180

solve for x with calculator:

x = 85

User InternalFX
by
3.8k points
1 vote

Answer:


sum \: of \: one \: exterior \: angle \: is \: \\ \\ equal \: to \: two \: opposite \: angle \: \\ \\ x + (x - 25) = 145 \\ \\x + x - 25 = 145 \\ \\ 2x - 25 = 145 \\ \\ 2x = 145 - 25 \\ \\ 2x = 120 \\ \\ x = 120 /2 \: \\ \\ x = 70

User PRIHLOP
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4.9k points