A net has 2 triangles and 3 rectangles. How many faces does the solid have? Answer:
4
This net folds into a cube.
TrueFalse
5
Which net folds into a cube?
ABC
Faces and surface area
6
The top of this box is 5 long and 2 wide. Each cube is 1 unit. What is the area of the top face, in square units? Answer:
7
How many faces of this box are 4 by 2? Answer:
8
Join each solid to the faces on its net.
1box
2triangular prism
3cube
4triangular pyramid
A4 triangles
B2 triangles and 3 rectangles
C6 equal squares
D6 rectangles
9
The net of this box has 3 pairs of matching faces, listed below. Add the area of all six faces. What is the surface area? Answer:
10
Zed paints every face of a cube. Each edge is 5 centimeters long. How many square centimeters does he paint? Answer:
Stretch
11
A cube has an edge of 7 cm. Which calculation gives its surface area?
7 × 7 × 74 × 7 × 76 × 76 × 7 × 7
12
Use the net of this box to find its surface area, in square units. Answer:
13
Explain why a net with 5 squares in a row cannot fold into a cube.
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