Cristina wants to make centerpieces for a dinner party. She buys 7 cylindrical vases and plans to fill them each halfway with co
lored water and then place flowers in them. Each vase is 8 inches tall and 3 inches in diameter. Approximately how much colored water does she need? Use 3.14 for π and round your answer to nearest tenth. She needs approximately __________ cubic inches.
P = 2w + 2l where w is the width, and l is the length. We know the length (l) is 3 inches longer than it's width (or l = w+3). Substitute w +3 into Perimeter equation. P = 2w + 2(w+3).