Pythagoras' theorem can also be used to solve 3D problems. You often need to use Pythagoras' theorem more than once in each problem as we create extra right-angled triangles in the 3D shapes.

The net is made up of two right-angled triangles and three rectangles. The dimensions of the rectangles are 3 cm by 6 cm, 4 cm by 6 cm, and 5 cm by 6 cm. There are no measurements on the 3D shape.

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