| Category | Format | Size |
|---|---|---|
| Jiangsu Education Edition Sixth Grade Mathematics Volume 2 | pptx | 6 MB |
"Surface Area of a Cylinder" Cylinder and Cone PPT Courseware
Description
"Surface Area of a Cylinder" Cylinder and Cone PPT Courseware
The length of the rectangle = the circumference of the base of the cylinder, and the width of the rectangle = the height of the cylinder.
Side area of cylinder = perimeter of base × height
What are the names and characteristics of the parts of a cylinder?
Derivation of the formula for calculating the side area of a cylinder:
The side expansion of the cylinder is a rectangle. The length of this rectangle is equal to the circumference of the base of the cylinder, and the width is equal to the height of the cylinder, because the area of the rectangle = length × width,
So side area of cylinder = perimeter of base × height
Try this exercise:
Calculate the lateral area of the cylinder below
(1) The bottom circumference is 4.2 cm and the height is 2 cm.
(2) The bottom diameter is 3 cm and the height is 4 cm.
(3) The bottom radius is 1 cm and the height is 3.5 cm.
Find the lateral area of the following cylinder
(1) The bottom radius is 3 cm and the height is 4 cm;
(2) The bottom diameter is 4 cm and the height is 5 cm.
(3) The circumference of the bottom is 12.56 cm and the height is 4 cm.
Try this exercise:
① Use a rectangular piece of paper 8cm long and 5cm wide to form a cylinder. The side area of this cylinder is ( ) cm2.
② For a 10-meter-long cylindrical drainage steel pipe, the radius of the cross-section circle measured is 0.2 meters. If anti-rust paint is sprayed on the surface of the steel pipe, the spray-painted area is ( ) square meters.
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For more information about the "Surface Area of a Cylinder Cylinder and Cone" PPT courseware, please click the "Surface Area of a Cylinder ppt Cylinder and Cone ppt" tag.
"Surface Area of a Cylinder" PPT download:
"Surface Area of a Cylinder" PPT Download Part One: New Lesson Analysis A cylindrical iron bucket without a lid (as shown below). (1) How many square centimeters of iron sheet should be used to make this bucket? 3.143035=3297 (square centimeters) 3.14 (302)2=706.5..
"Surface Area of a Cylinder" PPT courseware:
"Surface Area of a Cylinder" PPT Courseware Part One: Collaborative Exploration There are countless heights of a cylinder, and the lengths of the heights are all equal. Cooperation and communication in a group of four people: ① What shape is there when the side of the cylinder is expanded along the height? ②Which does the length and width of the expanded figure correspond to that of the cylinder?
"Surface Area of a Cylinder" PPT:
"Surface Area of a Cylinder" PPT Part One Content: Teaching Objectives 1. Be able to flexibly use the calculation method of the surface area of a cylinder to solve some simple problems in life according to specific situations, so that students can feel the close connection between mathematics and life. 2. Through imagination and operation Waiting for life...
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Update Time: 2024-07-04
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