2D Shapes
What shape has 3 sides and 3 corners?
Triangle
What 3D shape has 6 flat square faces?
Cube
What kind of angle is smaller than a right angle?
Acute angle
What is a line of symmetry?
A line that divides a shape into two equal parts.
What’s the difference between 2D and 3D shapes?
2D shapes are flat, 3D shapes have depth and take up space.
What do you call a shape with 4 equal sides and 4 right angles?
Square
How many faces does a cone have?
2 (1 curved, 1 flat)
What kind of angle measures exactly 90 degrees?
Right angle
True or False: A heart has a line of symmetry
True
Name a shape that has both curved and flat surfaces.
Cylinder
How many vertices does a pentagon have?
5
What is the name of a 3D shape with a circular base and one vertex?
Cone
Name the angle that is greater than a right angle but less than a straight angle.
Obtuse angle
How many lines of symmetry does a square have?
4
Find a real-life example of a cone.
Ice cream cone, party hat, etc.
True or False: A circle has edges and vertices.
False
A rectangular prism has how many vertices?
8
What angle forms a straight line?
Straight angle
Which shape does NOT have a line of symmetry: rectangle, circle, triangle, or scalene triangle?
Scalene triangle
Which 3D shape has the same number of faces, edges, and vertices?
Trick question! No shape has the same number for all three)
Name a 2D shape with opposite sides equal but no right angles.
Rhombus or Diamond
Which 3D shape has no edges and no vertices?
Sphere
Draw and label an obtuse angle
draw
Draw a symmetrical figure and show the line of symmetry.
Student drawing (teacher checks for understanding)
I am a 3D shape made entirely of triangular faces. I have 4 faces, 6 edges, and 4 vertices.
What shape am I?
A triangular pyramid (also called a tetrahedron)