The angles of any square or rectangle add up to 360 degrees with each degree being 90 degrees.
\(360^{\circ} = 90^{\circ} + 90^{\circ} + x + x\)What are the two missing angles of a certain rectangle?
\(360^{\circ} = 180^{\circ} + 2x\)
\(360^{\circ} - 180^{\circ} = 180^{\circ} - 180^{\circ} + 2x\)
\(180^{\circ} = 2x\)
\(\dfrac{180^{\circ}}{2} = \dfrac{2x}{2}\)
\(90^{\circ} = x\)
The two angles each equal \(90^{\circ}\).
