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That's not possible.

Two interior angles of a triangle can't add up to 261°, because all three of the interior angles

in any triangle always add up to 180°.

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Q: The sum of the measures of two interior angles of a triangle is 261 What is the measure of the third exterior angle?
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Related questions

In any triangle the measure of the exterior angle is equal to the sum of the measures of the?

In any triangle exterior angle plus interior angles = 180 degrees


Which theorem states that the measure of an exterior angle in a triangle is the sum of its remote interior angle measures?

exterior angle theorem


The measure of an exterior angle of a triangle is equal to the sum of the measures of its?

two opposite interior angles.


What therom states The measure of each exterior angle of a triangle equals the sum of the measures of its two remote interior angles?

the exterior angle theorem


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How do you use the exterior angles of a triangle to find interior angle measurements?

Theorem: An measure of an exterior angle of a triangle is equal to the sum of the measures of the two non-adjacent interior angles.An exterior angle is formed by one side of a triangle and the extension of an adjacent side of the triangle.In the triangle at the right,


The measure of an exterior angle of a triangle is120 degrees the interior angles that are not adjacent to this exterior angle are congruent find the measure of the interior angles of the triangle?

They are all 60 degrees.


Exterior angle of a triangle?

Exterior Angle Theorem Exterior angle of a triangle An exterior angle of a triangle is the angle formed by a side of the triangle and the extension of an adjacent side. In other words, it is the angle that is formed when you extend one of the sides of the triangle to create a new line, and then measure the angle between that new line and the adjacent side of the original triangle. Each triangle has three exterior angles, one at each vertex of the triangle. The measure of each exterior angle is equal to the sum of the measures of the two interior angles that are not adjacent to it. This is known as the Exterior Angle Theorem. For example, in the triangle below, the exterior angle at vertex C is equal to the sum of the measures of angles A and B So, angle ACB (the exterior angle at vertex C) is equal to the sum of angles A and B. Recomended for you: 𝕨𝕨𝕨.𝕕𝕚𝕘𝕚𝕤𝕥𝕠𝕣𝕖𝟚𝟜.𝕔𝕠𝕞/𝕣𝕖𝕕𝕚𝕣/𝟛𝟚𝟝𝟞𝟝𝟠/ℂ𝕠𝕝𝕝𝕖𝕟ℂ𝕠𝕒𝕝/


What is an exterior angle of a triangle and how does the measure of an exterior angle relate to the interior angles?

Exterior angle+interior angle=180 degrees and 180-exterior angle=interior angle


What are The measure of an exterior angle of a triangle is greater than the sum of the measures of the two opposite interior angles?

It is an indication of an error, or the fact that the triangle is not in the Euclidean plane but on a convex surface.


What is the Exterior Angle Theorem for a Triangle?

An exterior angle of a triangle is equal in measure to the sum of the other two interior angles.


What is the sum of the measure of the interior angles of a regular polygon if each exterior angle measures 120 degrees?

number of sides = 360/exterior angle = 360/120 = 3 polygon is therefore a triangle, interior angles total 180o