360 Degrees
All angles of a rectangle are 90 degrees.
If it weren't 90 degrees it wouldn't be a rectangle. Are you sure you worded this the way you meant?
A rectangle is a parallelogram with angles of 90 degrees. A square has those properties (and more) so it is a rectangle.
90 degrees
A rectangle has four corners, each of which is 90 degrees. 4 * 90 degrees = 360 degrees
A rectangle, by definition, has four angles, each of 90 degrees.
The 4 angles of a rectangle add up to 360 degrees
360 Degrees
A right angle - whether or not in a rectangle - is 90 degrees.
Each angle of a rectangle measures 90 degrees.
in total it has: 987 degrees
360 degrees
360 degrees
The sum of the interior angles of a rectangle is 360 degrees, but that is not the only sum possible.
all the angles are right angles (90 degrees) and add to 360 degrees
A square and a rectangle