a triangle
=======================
an equilateral triangle
A rhombus is a shape having two acute angles and four equal sides.
equilateral triangle.
a rhombus
56678 Shape is called a rhombus
Any shape with 4 acute angles must have more than 4 sides. Any shape with more than 4 sides can have 4 acute angles (but doesn't have to).
A rhombus is a shape having two acute angles and four equal sides.
equilateral triangle.
A rhombus
a parallelogram with opposite equal acute angles, opposite equal obtuse angles, and four equal sides.
A rhombus is your answer
a rhombus
An isosceles triangle fits the description given or an equilateral triangle which has 3 equal sides and 3 equal acute angles.
parallelogram
56678 Shape is called a rhombus
A square if it has 4 equal angles too, or a rhombus if it has two obtuse and two acute angles.
A parallelogram
Impossible.