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43 votes
43 votes
(05.02) Find the measure of angle x in the figure below:

55
45
80
55
100

(05.02) Find the measure of angle x in the figure below: 55 45 80 55 100-example-1
User Tim Sparkles
by
3.0k points

1 Answer

15 votes
15 votes

To find x, first find y.

In a triangle, all the angles add up to 180. So we can create the equation:

45+55+y=180
100+y=180
y=80

Since x and y are vertical angles, that mean they are equal so that means angle x is also 80.

User Nsk
by
3.2k points
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