Exterior Angle Property Worksheet
Explore the exterior angle property of triangles with this Grade 6 math worksheet, including identification and calculation exercises.
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Exterior Angle Property
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Read each question carefully and answer to the best of your ability. Show all your work for calculation problems.
The Exterior Angle Property states that the measure of an exterior angle of a triangle is equal to the sum of the measures of its two opposite interior angles.
Let's explore this property!
1. Which of the following statements is true about the exterior angle of a triangle?
It is always less than an interior angle.
It is equal to the sum of the adjacent interior angles.
It is equal to the sum of the two opposite interior angles.
It is always 90 degrees.
2. The exterior angle of a triangle is formed by one side of the triangle and the of an adjacent side.
3. If the two opposite interior angles of a triangle are 50° and 70°, then the exterior angle is degrees.
4. In the triangle below, find the value of x.
5. The exterior angle of a triangle is always greater than either of its opposite interior angles.
True
False
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