Learn 2D shapes vocabulary in English. Let’s see how many words we use to describe 2D shapes …

**2D Shapes Vocabulary in English**

**Shapes vocabulary | Video**

1. **square **– 4 sides of equal length, 4 right angle corners

2. **circle **– 1 curved side, same distance across at any side (diameter)

3. **equilateral triangle** – 3 sides, 3 equal angles, 3 sides of equal length

4. **right-angled triangle** – 3 sides, 2 sides of equal length, 1 right angle

5. **scalene triangle** – 3 sides of different length, 3 different angles

6. **oval** – 1 curved side, different distance across at any side (diameter)

7. **pentagon** – 5 sides, the sum of the internal angles is 540^{o}

8. **isosceles triangle** – 3 sides, 2 sides of equal length, 2 equal angles

9. **hexagon **– 6 sides, the sum of the internal angles is 720^{o}

10. **rectangle** – opposite sides are equal length, 4 right angle corners

11. **kite** – no parallel sides, 2 pairs of adjacent equal length sides, 2 equal angles

12. **rhombus** – 2 pairs of parallel sides, 4 sides of equal length, also called a diamond

13. **octagon** – 8 sides, the sum of the internal angles is 1080^{o}

14. **quadrilateral** – 4 sides, the sum of the internal angles is 360^{o}

15. **parallelogram** – 2 pairs of parallel sides, opposite sides are equal length

16. **trapezium** – 4 sides, 2 parallel sides, the sum of the internal angles is 360^{o}