Marisol constructed a triangle. One angle in the triangle had a measure of 40*. Another angle in the triangle had a measure of 80*. What is the measure, in degrees, of the third angle in Marisol’s triangle?

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. 
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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°

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