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Get three red 1x2x2 corner plates and prepare to drop one of them.
1. Prepare to drop the 2nd 1x2x2 corner plate.
2. Prepare to drop the 3rd 1x2x2 corner plate.
5. Get three 1x8 red bricks and prepare to drop the 1st one.
6. Prepare to drop the 2nd 1x8 brick.
7. Prepare to drop the 3rd 1x8 brick.
10. Congratulation! You have completed making a simple equilateral LEGO triangle.