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- acute- less than 90 degrees
- right- exactly 90 degrees, creates an L shape
- obtuse - more than 90 degrees but not at 180 degrees
- straight angle - exactly 180 degrees, a straight line
- reflex angle - between 180° and 360°
So really there are 5 named categories. But in a polygon, there would never exist a straight angle, because then the two 'sides' would just become 1 side.
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Does a rectangle have four sides and four angles?
yes and all have right angles
What has four sides and four angles Two angles are acute and two are acute?
If the figure has only four sides all together, then it's not possible for all four angles to be acute.
Are angles and sides of a parallelogram congruent?
In all parallelograms, opposite angles and opposite sides are congruent. If all four sides are congruent, it's a rhombus. If all four angles are congruent, it's a rectangle. If all four sides and all four angles are congruent, it's a square.
Has four right angles and all its equal?
A square has four right angles and all sides are equal.
What are 3 names for a square?
A square is a plane rectangle with four equal sides and four right angles, a four-sided regular polygon, and a rhombus having four right angles.
