alleryA triangle with exactly two equal sides folds into matching halves along how many lines?
A1
B3
C0
D2
Answer & Solution
Correct answer: A. 1
1. The line from the apex to the middle of the base splits the triangle into matching halves.
2. No other line does this when the sides are not all equal.
3. So there is exactly 1 line of symmetry.
_Source: Wikipedia, Isosceles triangle (CC BY-SA 4.0), Isosceles triangle_
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