Question

Select the properties that equilateral triangles and isosceles triangles have in common.

A 0 sides of equal length
B 2 sides of equal length
C 3 sides of equal length
D 3 equal angles

Answer 1

2 sides of equal length, 3 sides of equal length

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Answer 2

An isosceles triangle has two sides of equal length and the angles opposite those sides are of equal measure. An equilateral triangle has all three sides of equal length and all three angles of equal measure. An equilateral triangle is also an isosceles triangle.

So, C