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What is an exterior angle of a triangle?

Anonymous

∙ 12y ago

Updated: 4/28/2022

It is: 180-interior angle = exterior angle

Wiki User

∙ 12y ago

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Q: What is an exterior angle of a triangle?

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Can the exterior angle of triangle be straight angle?

When any side of triangle is extended outwards then exterior angle is formed. Sum of this exterior angle and adjacent interior angle = 180o. If exterior angle = 180o(straight angle) then interior adjacent angle is 0o which is not possible. So exterior angle can't be straight angle.

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.

Is an exterior angle of a triangle always acute?

No :) Because one angle of the triangle is always acute and so the exterior has to be obtuse.

Which of these two regular polygons has the larger exterior angle a triangle or a heptagon?

It is the equilateral triangle that has the largest exterior angle of 120 degrees

Can an acute-angled triangle have an acute exterior angle?

No. An interior angle plus its exterior partner add up to 180 degrees. In order for an exterior angle to be acute, its interior partner would have to be obtuse, which doesn't happen in an acute triangle.

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Related Questions

What is a Exterior angle of a triangle?

It is: 180-interior angle = exterior angle

What is an exterior angle for a triangle?

180 minus interior angle = exterior angle

How do you work out exterior angle for a triangle?

It is: 180-interior angle = exterior angle

Exterior angle property of a triangle?

measure of exterior angle of triangle is equal to sum of interior angles. for eg. In triangle ABC, angle C is exterior angle angle A and angle B are interior angles so, C=A+B

How do you find a missing exterior angle of a triangle?

At each vertex of a triangle, an exterior angle of the triangle may be formed by extending ONE SIDE of the triangle.

Can the exterior angle of triangle be straight angle?

When any side of triangle is extended outwards then exterior angle is formed. Sum of this exterior angle and adjacent interior angle = 180o. If exterior angle = 180o(straight angle) then interior adjacent angle is 0o which is not possible. So exterior angle can't be straight angle.

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

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/

Is an exterior angle of a triangle always acute?

No :) Because one angle of the triangle is always acute and so the exterior has to be obtuse.

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 measurement of an exterior angle of a triangle is equal to the sum of?

Interior angle+exterior angle = 180 degrees

Which of these two regular polygons has the larger exterior angle a triangle or a heptagon?

It is the equilateral triangle that has the largest exterior angle of 120 degrees

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