A rectangle is a quadrilateral (four sided shape) with four right angles. Therefore, the measure of every angle is 90 deg.
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Inside a rectangle with its diagonals drawn in, there are 36 different angles. Describe which one you're interested in, and we'll describe how to measure it.
A rectangle has four angles inside it. Each of them is a right angle (measures 90 degrees).
the correct answer is 90
90 degrees
90