A shape has three sides if its interior angles add up to equal 180 degrees.
It is an equilateral triangle that has 3 equal sides and 3 equal inside angles that add up to 180 degrees
A rhombus is a shape having two acute angles and four equal sides.
Angles are measured in degrees, not sides.
No shape has four equal sides and four different angles - either there are two pairs of equal angles, or all four angles are the same; or all sides are not the same length.
A square
Any regular shaped polygon has equal angles and equal sides
A shape has three sides if its interior angles add up to equal 180 degrees.
A shape with 3 sides is exactly triangular as for example an equilateral triangle has 3 equal sides and 3 equal angles of 60 degrees that add up to 180 degrees.
It is an equilateral triangle that has 3 equal sides and 3 equal inside angles that add up to 180 degrees
If all 4 sides are equal and the angles are not 90 degrees it is a rhombus.
Anything that has 4 equal sides and 4 equal interior angles of 90 degrees
a square. all of the angles are 90 degrees or pi/2 radians.
A parallelogram
A shape with 4 right angles and 4 equal sides is a square. ==========================
A shape where all the sides are equal and all the angles are equal. If all sides are equal but angles or not, it is equilateral. If it is vice versa, it is equiangular.
A square has 4 equal sides with opposite angles that are equal.