مفهوم المضلع الرباعي

The video tutorial explains the concept of quadrilaterals, focusing on their properties such as having four sides and four angles. It introduces the idea of diagonals, which are line segments connecting non-adjacent vertices. The tutorial also distinguishes between adjacent and opposite sides, emphasizing their characteristics. Finally, it highlights that the sum of the interior angles of any quadrilateral is always 360 degrees.

How many sides does a quadrilateral have?

• Three

• Four

• Five

• Six

What is a diagonal in a quadrilateral?

• A line connecting two consecutive vertices

• A line connecting two non-consecutive vertices

• A line parallel to one of the sides

• A line perpendicular to one of the sides

Which of the following pairs of sides are considered adjacent?

• Alpha-Beta and Gamma-Delta

• Alpha-Beta and Alpha-Delta

• Gamma-Delta and Beta-Alpha

• Beta-Gamma and Delta-Alpha

What is the sum of the interior angles of any quadrilateral?

• 360 degrees

• 180 degrees

• 270 degrees

• 450 degrees

If you measure the angles of a quadrilateral and add them, what should the total be?

• 540 degrees

• 360 degrees

• 270 degrees

• 180 degrees