2D shapes: name from diagram
for 3rd grade

Identify 2D shapes from diagrams

This topic helps you learn the names of many 2-dimensional shapes. We can divide shapes based on the number of sides they have, how many of those sides are parallel, and the nature of the angles where those sides meet. This topic also includes ellipses and circles. Some of the shapes are described below

1. A parallelogram is a quadrilateral (4 sides) with opposite sides parallel and equal in length, and pairs of angles are equal.
2. A rhombus is a type of parallelogram with all 4 sides equal in length.
3. A rectangle is a special parallelogram where all 4 angles are 90°.
4. A square is a special type of rectangle where all sides are the same length.
5. A trapezoid is a quadrilateral with one pair of parallel sides.
6. A kite is a quadrilateral with two pairs of adjacent sides equal in length.
7. A pentagon has 5 sides.
8. A hexagon has 6 sides.
9. A heptagon has 7 sides.
10. An octagon has 8 sides.

This topic shows you diagrams of different 2D shapes and you have to name them correctly. You may have noticed that the rhombus is a special type of parallelogram where all 4 sides are the same length. This is true for a few of the shapes in this toic. You should always go with the most specific name, so if it is a rhombus go with rhombus even though parallelogram is also technically correct.