Grade 3 Geometry Worksheets

How to solve Grade 3 geometry problems

Real problems from these worksheets, solved one step at a time — the same explanations your child sees when practicing online.

1. Example 1

   A rectangle is covered with unit squares, 6 rows of 9, with no gaps or overlaps. What is its area in square units?

   1. Area is the number of unit squares that cover the rectangle. Count them fast: 6 rows of 9 is 6 × 9.
   2. Area = length × width = 9 × 6 = 54 square units.

   Answer: 54 square units

2. Example 2

   I am a quadrilateral with exactly one pair of parallel sides. What is my most specific name?

   1. It has 4 straight sides, so it is a quadrilateral.
   2. Only one pair of its sides is parallel. A parallelogram needs 2 pairs, so it is not a parallelogram.
   3. Its most specific name is trapezoid.

   Answer: trapezoid

3. Example 3

   What is the most specific name for the quadrilateral shown?

   1. Both pairs of opposite sides are parallel, so it is a parallelogram.
   2. It has no right angles, so it is not a rectangle, and its sides are not all the same length, so it is not a rhombus.
   3. Its most specific name is parallelogram.

   Answer: parallelogram