Pole równoległoboku - Matematyka Szkoła Podstawowa i Gimnazjum

In this video, I explain how to identify and draw the heights in a parallelogram and teach how to calculate the area of a parallelogram using the formula H × A, that is, height times base. I show that the height must be perpendicular to the base and that each height forms a so-called height–base pair with the corresponding side. I explain how to choose the base, how to draw the height using a set square, and how to take the measurements needed for the calculation. I present how the formula for the area of a parallelogram can be derived by transforming it into a rectangle. I calculate the area based on given dimensions, on measurements taken from a drawing, and by dividing a composite figure into parallelograms. Contents: 1. Height and base in a parallelogram 2. Drawing the height using a set square 3. Relationship between height and base 4. Example: drawing the height for different bases 5. Formula for the area of a parallelogram 6. Explanation of the formula by transforming into a rectangle 7. Calculating the area from given numerical data 8. Calculating the area from side and height measurements 9. Dividing a composite figure into parallelograms 10. Sum of areas as the total area of the figure CONTINUATION OF THIS VIDEO here: [   • Dokończenie filmu p.t. Pole równoległoboku  ](   • Dokończenie filmu p.t. Pole równoległoboku  ) Find more on the playlists: [   • GEOMETRIA NA PŁASZCZYŹNIE  ](   • GEOMETRIA NA PŁASZCZYŹNIE  ) and [   • POLE POWIERZCHNI  ](   • POLE POWIERZCHNI  ) EASY ACCESS to all my math lessons is available on my website: [www.matmagwiazdy.pl](http://www.matmagwiazdy.pl) On this channel, you will find a complete course – 100% of the lessons – in Mathematics for Primary School, High School, and Technical School. Good luck :) Tomasz D. Gwiazda 0:00 Height and base in a parallelogram 1:17 Drawing the height using a set square 3:18 Relationship between height and base 4:10 Example: drawing the height for different bases 5:30 Formula for the area of a parallelogram 7:08 Explanation of the formula by transforming into a rectangle 8:33 Calculating the area from given numerical data 9:54 Calculating the area from side and height measurements 12:08 Dividing a composite figure into parallelograms 14:05 Sum of areas as the total area of the figure