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Maths · Grade 6 · Set C
Nets, Faces and Pyramids
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C
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Goal: 15 min
Score/ 11
Remember: A net is a solid unfolded flat. Add the areas of its faces to get the surface area.

Nets that fold

1
Which net folds into a cube?
A
B
C
2
Which net does NOT fold into a cube?
A
B
C
3
This net folds into a cube.
TrueFalse
4
Join each solid to how many faces it has.
  1. 1cube
  2. 2triangular pyramid
  3. 3triangular prism
  • A6 faces
  • B5 faces
  • C4 faces

Faces and surface area

5
How many faces of this box are 6 by 4? Answer:
6
Use the net of this box to find its surface area, in square units. Answer:
7
This square pyramid has a square base, 4 by 4, and four triangles. Each triangle has base 4 and height 5. What is the area of one triangle? Answer:
8
Use the table to find the surface area of this square pyramid, in square units. Answer:
9
A gift box is a cube with an edge of 9 centimeters. How many square centimeters of paper cover all its faces, with no overlap? Answer:

Stretch

10
A cube has a surface area of 54 square centimeters. How long is one edge, in centimeters? Answer:
11
Cutting a box open and laying it flat changes its surface area.
TrueFalse
12
Draw a net of 6 squares that will NOT fold into a cube.
13
Write how you know your net will not fold into a cube.
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