Mathematics for IGCSE & O level - Pythagoras' Theorem And Trigonometry (Section 2 - No. 12)
In an isosceles triangle where the lengths of two sides are equal, which of the following statements must be true?
All angles are equal.
Two angles are equal.
All sides are different.
The longest side is opposite the largest angle.
Explanation
In an isosceles triangle, the angles opposite the equal sides are equal.
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