I am a 2-dimensional object. What am I?
2D Shape
I am a 3-dimensional object. What am I?
3D Solid/Shape
I am what it looks like if a 3D shape is opened out flat. I am also made of many different 2d shapes.
What am I?
Net
mm - cm - m - km
Millimeters, Centimeters, Meters, Kilometer
Find the perimeter above. Don't forget the unit of measurement.
4cm+4cm+3cm+3cm = 14cm
How many identical sets of flat surfaces (faces) does a cube have? And what shape is it?
1 set of 6 identical square
I am the total length around the edge of a shape. What am I?
Perimeter
I am the amount of space inside a 2D shape. What am I?
Area
How many sides and vectice does a triangle has?
3 sides and 3 vectices
How many faces, vertices and edges does a rectangular prism have?
6 faces and 8 vertices, and 12 edges.
I am the point where 2 lines meet.
I am also known by many names, such as corner in 3D shape and angle in 2D shape.
What am I?
Vertex/vertice
I am the flat surface of a solid side of a 3D shape.
What am I?
How many sides and vertices are there in a rectangle?
How many identical pairs of flat surface (face) does a rectangular prism have?
1 pair of top & bottom
1 pair of front and back
1 pair of side and side
I am the line where 2 faces (flat surfaces) in a 3D shape meet/connect.
What am I?
Edge
I am the sum of the areas of all the faces (flat surfaces) of a three-dimensional object.
What am I?
Total Surface Area
Find the area of the shape below.
=24cm2
What is the total surface area of the following 3D shape?
Top & bottom = 6cmx3cm= 18cm x2 = 36 cm2
Front & back = 6cm x4cm= 24cm x 2= 48 cm2
Side & Side = 3cm x4cm= 12cm x2 = 24cm2
36+48+24=108 cm2