To begin with, let us have a short drill. For this activity, you will be needing a paper, a compass, a pair of scissors, a protractor, a ruler and a tape or a glue. Step 1: Draw a circle on a paper using a compass. It's up to you how big or how small the circle will be. Step 2: Using a pair of scissors, cut off the circle. Step 3. Draw two radii of the circle whose angle between them measures 60- degrees. Step 4. Cut the region bounded by the two radii (or the sector) of the circle. Step 5: Bring the two edges together to close the gap made on the circle. You can overlap it if you want to fit your desire broadness of the bottom. Step 6: Glue or tape it