A polygon is simply a shape ... It has four right angles (90°). The opposite sides are parallel. The diagonals bisect each other. The exterior angles of a rectangle are each 90°.

One interior angle is \(720 \div 6 = 120^\circ\). If the side of a polygon is extended, the angle formed outside the polygon is the exterior angle. The sum of the exterior angles of a polygon is ...

Interior angle in a regular polygon = \(\mathbf{\frac{180(n-2)}{n}}\) If the side of a polygon is extended, the angle formed outside the polygon is the exterior angle. The sum of the exterior ...

Knowing the difference between regular and irregular polygons can help when working out the size of missing angles. In order to work out the size of missing interior angles in polygons ...

Interior angles in a triangle add up to 180˚. Triangles close triangleA polygon with three straight sides. have three sides, therefore they have three angles. Interior angles in a triangle sum to ...

Two congruent angles are simply pairs of angles with equal measures. You can find congruent angles examples in hundreds of everyday objects.