which triangle has 0 reflectional symmetries?
which triangle has 0 reflectional symmetries?
Answer
Explanation:
Step1: Recall reflection - symmetry concept
A triangle has reflectional symmetry if there is a line (axis of symmetry) such that reflecting the triangle across that line gives the same triangle.
Step2: Analyze types of triangles
- An equilateral triangle (the second - type in the picture) has 3 reflectional symmetries.
- An isosceles right - triangle (the third - type in the picture) has 1 reflectional symmetry.
- A scalene right - triangle (the first - type in the picture) has no line of symmetry. When we try to reflect it across any line, the two halves will not match.
Answer:
The first triangle (scalene right - triangle)