a 70° angle, a 30° angle, an 80° angleHow many triangles can be made with the angle measures shown here?ResponsesA no triangleno triangleB a unique trianglea unique triangleC more than one trianglemore than one triangleD the answer cannot be determined
Question
a 70° angle, a 30° angle, an 80° angleHow many triangles can be made with the angle measures shown here?ResponsesA no triangleno triangleB a unique trianglea unique triangleC more than one trianglemore than one triangleD the answer cannot be determined
Solution 1
The sum of the angles in a triangle is always 180°.
Let's add up the given angles:
70° + 30° + 80° = 180°
Since the sum of the given angles is exactly 180°, these angles can form a triangle.
Therefore, the answer is B: a unique triangle.
Solution 2
The sum of the angles in a triangle is always 180°. If we add up the given angles, 70° + 30° + 80°, we get 180°. Therefore, these angles can form a unique triangle. So, the answer is B, a unique triangle.
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