| Category | Format | Size |
|---|---|---|
| Jiangsu Education Edition Sixth Grade Mathematics Volume 2 | pptx | 6 MB |
"Surface Area of a Cylinder" Cylinder and Cone PPT Courseware 3
Description
"Surface Area of a Cylinder" Cylinder and Cone PPT Courseware 3
Judgment: (Pick “√” if it’s right, “×” if it’s wrong)
(1) The cylinder has only one height. ( )
(2) The side area of a cylinder is always smaller than the surface area. ( )
(3) To make an iron sheet chimney, the area of the iron sheet used to calculate the cylinder is the side area. ( )
(4) The side surface of the cylinder is a parallelogram. ( )
(5) If the side of a cylinder is expanded into a square, then the height of the cylinder is 2Π times the radius of the base. ( )
Answer the following questions orally
(1) Expand the sides of a cylinder, and you may get a rectangle. The length of this rectangle is equal to the cylinder ( ), and the width is equal to the cylinder ( ).
(2) How much road surface can the road roller roll over in one rotation is the area of ( ).
(3) To make a cylindrical bucket without a lid, use ( ) area plus ( ) bottom surface area for the amount of iron sheet used.
(4) For a (cylindrical) pencil, to find the part that needs to be painted, calculate its ( ) area and multiply ( ) by ( ) of the base.
Apply knowledge to solve problems
The picture on the left is a cylindrical cake box with a base radius of 15 cm and a height of 20 cm.
(1) How many square centimeters of cardboard are needed to make this cake box?
(2) To wrap this cake box with ribbons as shown in the picture on the left, how many centimeters of ribbons are needed at least? (Use about 15cm of ribbon at the knot)
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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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