A rhombus has 4 equal sides, 2 acute angles and 2 obtuse angles. If you are looking for a polygon with 4 equal sides and ALL acute angles, that can't exist. An acute angle is an angle of less than 90 degrees, so four of them add up to less than 360 degrees. But the four angles inside a four-sided polygon must add up to 360 degrees, so they can't all be acute.
In a quadrilateral (four sided polygon), the four angles will add up to 360°.
If the polygon is regular, the measure of one interior angle of a 24 side polygon is 165 degrees.
A square is a regular four-sided polygon.
A hexagon is a six-sided polygon. A four-sided polygon is a quadrilateral, quadrangle, or tetragon.
A four-sided polygon has two diagonals.
No four-sided figure can have four acute angles.The sum of the four interior angles of any four-sided figure is always 360 degrees.An acute angle is any angle less than 90 degrees.4 times (less than 90 degrees) = (less than 360 degrees), so it can't happen.
A pentagon and a quadrilateral, respectively.
The area of a four-sided polygon is base times height.
A four sided polygon with four congruent sides is a rhombusA square.
A four sided polygon is a quadrilateral.
A regular pentagon has no acute angles. It is possible to draw a pentagon (five sided polygon) where four of the internal angles are acute.