2D Shapes & Properties — Answer Key
Part A: Multiple Choice
Circle the best answer for each question.
1. Which shape has 4 equal sides and 4 corners?
A) triangle
B) rectangle
C) square
D) hexagon
A square is special because all 4 of its sides are the same length and it has 4 corners.
2. How many sides does an oval have?
A) 0
B) 1
C) 2
D) 4
An oval is curved all the way around with no straight edges, so it has 0 sides.
3. Which shape has exactly 3 corners?
A) square
B) hexagon
C) circle
D) triangle
A triangle is the only shape with exactly 3 corners and 3 sides.
4. How many corners does a rectangle have?
A) 2
B) 3
C) 4
D) 6
A rectangle has 4 corners because its 4 sides meet at 4 points.
Part B: Fill in the Blank
Write the correct answer on each line.
1. A hexagon has 6 sides.
The word "hex" means six, so a hexagon always has 6 sides.
2. A shape with no corners is a circle.
A circle is smooth and round with no points where sides meet, so it has no corners.
3. A triangle has 3 sides.
Count the straight lines on a triangle: there are 3 sides.
4. A rectangle has 1 more sides than a triangle.
A rectangle has 4 sides and a triangle has 3, so the rectangle has 1 more side.
5. A square and a rectangle both have 4 corners.
Both squares and rectangles have 4 sides, so they each have 4 corners where the sides meet.