Respuesta :
A triangles angle always equal to 180 degrees. So if you add up what you already have which is 80+40=120. To find the 3rd angle you subtract 180-120=60. So, the 3rd angle is 60 degrees.
Hope you find this useful!
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Hope you find this useful!
Please mark me brainliest! :)
The third angle measure of triangle is 60°
What is Triangle?
A triangle is a polygon with three edges and three vertices. It is one of the basic shapes in geometry.
What is sum of angle of triangle?
If we add all three angles in any triangle we get 180 degrees. So, the measure of angle A + angle B + angle C = 180 degrees.
According to question
Area of triangle = 180°
angle A + angle B + angle C = 180 degrees
40° + 80° + angle C = 180°
120°+ angle C = 180°
angle C = 180°- 120°
angle C = 60°
Hence third angle of triangle constructed by Marisol is 60°
to know more about triangles click here
https://brainly.com/question/12113882
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