2D Shapes & Properties — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which shape has 0 sides and 0 corners?
A) square
B) circle
C) triangle
D) hexagon
A circle is round and smooth with no straight sides and no corners.
2. How many corners does a triangle have?
A) 2
B) 4
C) 3
D) 6
A triangle has 3 corners because each of its 3 sides meets at a point.
3. Which shape has 6 sides?
A) rectangle
B) oval
C) square
D) hexagon
A hexagon is the shape with 6 sides. The word "hex" means six.
4. How many sides does a rectangle have?
A) 3
B) 4
C) 5
D) 6
A rectangle has 4 sides: 2 long sides and 2 short sides.
Part B: Fill in the Blank
Write the correct answer on each line.
1. A square has 4 equal sides.
All 4 sides of a square are the same length, so they are equal.
2. A circle is round like a ball.
A circle has no corners or straight edges, so it is smooth and round just like a ball.
3. A hexagon has 6 corners.
A hexagon has 6 sides, and where each pair of sides meets there is a corner, so it has 6 corners.
4. A triangle has 1 fewer sides than a square.
A triangle has 3 sides and a square has 4, so the triangle has 1 fewer side.
5. An oval has 0 sides.
An oval is curved all the way around with no straight edges, so it has 0 sides.