7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving...

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7.4: Surface Area and Volume of Cylinders Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders, hemispheres, and spheres. 05/08/22 7.4: Surface Area and Volume of Cylinders

Transcript of 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving...

Page 1: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

7.4: Surface Area and Volume of Cylinders

Expectation:G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders, hemispheres, and spheres.

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 2: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

A regular hexagonal pyramid has base perimeter of 72 inches and slant height of 14 inches. Determine the exact volume of the pyramid.

Page 3: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,
Page 4: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

What will we learn today?

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 5: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Cylinder

Defn: A cylinder is the union of a circular region, its translated image in space and all points in between.

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 6: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Anatomy of a Cylinder

05/05/23 7.4: Surface Area and Volume of Cylinders

_________

Page 7: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Anatomy of a Cylinder

05/05/23 7.4: Surface Area and Volume of Cylinders

Lateral surface

Page 8: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Anatomy of a Cylinder

05/05/23 7.4: Surface Area and Volume of Cylinders

_________

The height of a cylinder is the length of one of its altitudes.

Page 9: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Anatomy of a Cylinder

05/05/23 7.4: Surface Area and Volume of Cylinders

The ______of a cylinder is the segment with its endpoints at the centers of the bases.

Page 10: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Right Cylinders

A cylinder is right if its axis is ______________ to its bases.

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 11: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Oblique Cylinders

A cylinder is oblique if its axis is oblique to its ______.

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 12: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Lateral and Surface Areas of a Right Cylinder

a. Sketch a net for a right cylinder with radius r and height h.b. What is the lateral area of the cylinder?c. What is the surface area of the cylinder?

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 13: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Lateral and Surface Areas of a Right Cylinder

Let L be the lateral area and S be the surface area of a right cylinder with radius r and height h. Then L = _______ and S = ______________

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 14: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Volume of a Cylinder

Let V be the volume of a cylinder with radius r and height h. Then V=_________.

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 15: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

A cylindrical water tank has a diameter of 30 feet and a height of 100 feet. If 1 cubic foot of water is 7.48 gallons, how many gallons of water will the tank hold?

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 16: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

An oblique cylinder has a height of 10 inches and its base has radius of 5 inches. A Right cylinder has radius of 5 inches and its height is 10 inches. A right rectangular prism has a base with dimensions 5 inches by 5π inches and a height of 10 inches. Compare the volumes of the three figures and give a justification.

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 17: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

The volume of a right cylinder is 125π cubic cm. If the height of the cylinder is 5 cm, what is the surface area of the right cylinder?

05/05/23 7.4: Surface Area and Volume of Cylinders

Page 18: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

What is the volume of a cylinder with a height of 16 and a base area of 25π?A.5πB.25πC.50πD.200πE.400π

05/05/23 7.5: Surface Area and Volume of Cones

Page 19: 7.4: SURFACE AREA AND VOLUME OF CYLINDERS Expectation: G1.8.1: Solve multistep problems involving surface area and volume of pyramids, prisms, cones, cylinders,

Assignment

pages 456-458, # 13-29(odd), 30-32 (all), 35-38

05/05/23 7.4: Surface Area and Volume of Cylinders