A side on any square or rectangle -- improvement -- Not quite. 90 degrees looks like the junction of two sides of a square or rectangle.
It looks like (and is) a rectangle. All angles will be 90 degrees.
It is exactly 90 degrees in angle measure. Take the angles on a rectangle or square for example.
Both a square and a rectangle have 4 angles of 90 degrees.
All angles of a rectangle are 90 degrees.
A side on any square or rectangle -- improvement -- Not quite. 90 degrees looks like the junction of two sides of a square or rectangle.
It looks like (and is) a rectangle. All angles will be 90 degrees.
It is exactly 90 degrees in angle measure. Take the angles on a rectangle or square for example.
A rectangle has four corners, each of which is 90 degrees. 4 * 90 degrees = 360 degrees
A 'lazy' rectangle. The opposite sides are parallel and equal in length, but the none of the angles are at 90 degrees.
If it is 'slanted' it is not a rectangle. If the opposite sides are congruent (just like a rectangle) but the angles are not 90 degrees, it is a parallelogram.
A rectangle, by definition, has four angles, each of 90 degrees.
Four of them.
Both a square and a rectangle have 4 angles of 90 degrees.
A square and a rectangle
All angles of a rectangle are 90 degrees.
Since every rectangle has 4 internal 90-degree angles ("right angles"), the sum of the angles of any rectangle is 90o+90o+90o+90o, equaling 360 degrees.