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Question
primary 6 | Maths
| Geometry
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Please help. Thanks.
Date Posted: 4 years ago
Views: 194
method 1
solid = 1+3+6 = 10 1-cm cube
3-cm cube = 27 1-cm cube
diff. = 17
17 more 1-cm cube
OR
method 2
to make 3-cm cube
1st level , 9 1-cm cubes
need 9-6 = 3 1-cm cubes
2nd level , 9 1-cm cubes
need 9-3 = 6 1-cm cubes
3rd level , 9 1-cm cubes
need 9-1 = 8 1-cm cubes
total needed = 3+6+8
= 17 1-cm cubes
.
.
.
solid = 1+3+6 = 10 1-cm cube
3-cm cube = 27 1-cm cube
diff. = 17
17 more 1-cm cube
OR
method 2
to make 3-cm cube
1st level , 9 1-cm cubes
need 9-6 = 3 1-cm cubes
2nd level , 9 1-cm cubes
need 9-3 = 6 1-cm cubes
3rd level , 9 1-cm cubes
need 9-1 = 8 1-cm cubes
total needed = 3+6+8
= 17 1-cm cubes
.
.
.
Thank you so much.
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Date Posted:
4 years ago
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