Class 10 Mathematics | The relation of parallelograms standing on the same base and lying between the same parallel lines

Mathematics · Class 10 · Lesson 10

Parallelograms on the Same Base and between the Same Parallels

Equal area · Theorem 1 · Example 1

By the end of this lesson you can

🔍

Tell congruent figures from figures of equal area

📏

Check for same base and same parallel lines

✍️

Prove Theorem 1 with reasons

🧮

Use the theorem to find areas and heights

🟰Congruent

Match exactly when overlapped

Same shape and size

Area always equal

📐Equal area only

Cover the same surface

Shapes can differ

2 × 6 and 4 × 3 rectangles

The notes are free to read in full.

Presenter notes: Today we find out why two parallelograms that look quite different can cover exactly the same amount of surface.