It looks like you're looking for help with a quick check on angles of triangles, typically found in a lesson on triangle properties. Here’s a brief review of key concepts regarding angles in triangles, which could help you.
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Sum of Angles in a Triangle: The sum of the interior angles in any triangle is always 180 degrees.
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Angle Relationships:
- If two angles in a triangle are known, the third can be calculated by subtracting the sum of the known angles from 180 degrees.
- For example, if you have angles of 50° and 60°, the third angle would be: \[ 180° - (50° + 60°) = 70° \]
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Types of Angles:
- Acute Triangle: All angles are less than 90 degrees.
- Right Triangle: One angle is exactly 90 degrees.
- Obtuse Triangle: One angle is greater than 90 degrees.
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Exterior Angle Theorem: The measure of an exterior angle of a triangle is equal to the sum of the measures of the two opposite interior angles.
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Congruent Triangles: If two angles of one triangle are congruent to two angles of another triangle, the third angles are also congruent.
If you have specific questions or problems from your quick check, feel free to share them, and I'd be glad to help!
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