Question

Which set of shapes contains members that are always similar to one another?

trapezoids
isosceles triangles
equilateral triangles
rectangles
pentagons

Answer 1

Hello,

Is member meanning side?

If Yes then equilateral triangles

Answer C

Answer 2

Equilateral triangle is the correct answer.

Explanation:

• In the Equilateral triangle are all three sides have the same length /congruent

• All the three interior angles are also similar in an equilateral triangle

• Only the set of equilateral triangles contains members that are always similar to one another because all the angles are fixed and equal that is 60 degrees.
• Rest(trapezoids, isosceles triangles,rectangles, pentagons) does not have fixed angles in it.