"Circle and Sector" PPT courseware

Description

"Circle and Sector" PPT courseware

1. Measure the radius and diameter of the circle.

2. The point in the center of the circle is called ( ), represented by the letter ( ), and its distance from any point on the circle is ( ).

3. When drawing a circle, the distance between the two legs of the compass is round ( ).

4. To draw a circle with a diameter of 5 cm, the distance between the two tips of the compass should be ( ) cm.

5. Use a compass or other tool to draw a circle.

(1)r=3.5cm

(2)r=3cm

(3)r＝40mm

6. Judgment.

(1) Draw a circle with a diameter of 4 cm. The two legs of the compass should be 4 cm apart. ( )

(2) Among the line segments connecting any two points on the circle, the diameter is the longest. ( )

7. A circle is a ( ) figure on the plane. The position of the circle is determined by ( ), and the size of the circle is determined by ( ).

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Update Time: 2024-10-19

This template belongs to Mathematics courseware Hebei Education Edition Sixth Grade Mathematics Volume 1 industry PPT template

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