Question 27
A cube is made up of 1 cm × 1 cm × 1 cm blocks and measures 12 cm × 12 cm × 12 cm. Sharyn is using the same set of blocks to make a set of stairs. The picture shows how she started, making stairs 4 blocks high, 4 blocks from front to back and 5 blocks wide. Her finished set of stairs will use all the blocks and be 8 blocks high and 8 blocks from front to back. How many blocks wide will they be?
