Learn 2D shapes vocabulary in English. Let’s see how many words we use to describe 2D shapes …
2D Shapes Vocabulary in English
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 540o
8. isosceles triangle – 3 sides, 2 sides of equal length, 2 equal angles
9. hexagon – 6 sides, the sum of the internal angles is 720o
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 1080o
14. quadrilateral – 4 sides, the sum of the internal angles is 360o
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 360o
2D Shapes Vocabulary | Image
