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Finding the surface are of three dimensional shapes can involve some interesting formulae. This video is to help you do the online, self-marking exercise which can be found here:
www.transum.or...
0:59 Cuboid
1:44 Prism
4:33 Cylinder
5:35 Cone
8:06 Pyramid
10:14 Sphere
There are many more online exercises, activities and resources on Transum.org which you can find at the following web addresses:
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Maths games: www.transum.or...
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Maths curriculum: www.transum.or...
Exam-style questions: www.transum.or...
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