Volume of Cylinders, Day 2. Warm Up A pipe is made from 3 cylinders. The smaller cylinders are each 8 centimeters tall and have a diameter of 6 centimeters.

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Volume of Cylinders, Day 2

Warm Up

A pipe is made from 3 cylinders. The smaller cylinders are each 8 centimeters tall and have a diameter of 6 centimeters. The larger cylinder is 12 centimeters tall and has a diameter of 10 centimeters. Find the volume of the pipe to the nearest tenth.

How do you find the volume of a cylinder? You multiply the area of the base by the height.

Compare and contrast cylinders and prisms; how are they alike and how are they different? Both have two parallel congruent bases. For cylinders the bases are circles; for prisms the bases are polygons. The bases of a cylinder are connected by a curved surface; the bases of a prism are connected by faces that are polygons.

Which will increase the volume by a greater amount, doubling the radius or doubling the height? Explain. Doubling the radius; the radius is squared when calculating the volume, so doubling the radius will increase the volume four-fold; doubling the height will double the volume.

The general formula V = Bh can be applied to all prisms and cylinders. However, the formula used to calculate B, the area of the base, will differ due to the shape of the base.

What measurements do you need to know in order to find the volume of a cylinder? What formula will you use? You need to know either the radius or the diameter of the bases and the height of the cylinder. V = Bh

A cylindrical silo that stores grain has a diameter of 16 feet and is 40 feet tall. Find the volume of the silo to the nearest tenth. Use 3.14 for ∏.

A barrel of crude oil contains about 5.61 cubic feet of oil. How many barrels of oil are contained in 1 mile (5280 feet) of a pipeline that has an inside diameter of 6 inches and is completely filled with oil? How much is “1 mile” of oil in this pipeline worth at a price of $100 per barrel?

Exit Ticket Use 3.14 for. Round answers to the nearest tenth if necessary. 1.A can of chili has a radius of 5.25 cm and a height of 13 cm. Find the volume. 2.A cylindrical carton of oatmeal has a diameter of 13 cm and is 24 cm tall. Find the volume. 3.Which has a greater volume? Cylinder A: r = 3 m, h = 1.2 m Cylinder B: d = 4 m, h = 2.5 m 4.Daren uses rice to fill a cylindrical glass measuring 6 inches high with a radius of 2.5 inches. He pours this rice into a cardboard cylinder that is 3.5 inches high with a diameter of 8 inches. Will he have enough rice to fill the cardboard cylinder? Explain.