The radius of a circle is 3M. If we transform it into an approximate rectangle, the perimeter of the rectangle is () m and the area is () m2
The radius of a circle is 3M. If it is transformed into an approximate rectangle, the width of the rectangle is 3M and the length is 3 π M
The perimeter is (6 + 6 π) m and the area is 9 π m2
RELATED INFORMATIONS
- 1. In the following figure, the outer circle radius is 9cm and the inner circle radius is 5cm
- 2. As shown in the figure, equicircle ⊙ O1 and ⊙ O2 are circumscribed, and both are inscribed with ⊙ O. if the perimeter of ⊙ oo1o2 is 24cm, what is the radius of ⊙ o
- 3. As shown in the figure, the radius of the small round field is increased by 5m to get the large round field. If the area of the field is doubled, the radius of the small round field is reduced=______ .
- 4. Increase the radius of the small round site by 5m to get a large round site, double the site area, and calculate the radius of the small round site?
- 5. The minimum positive period of the function f (x) = 2Sin ^ 2 (Wx) + 2 radical 3sinwxsin (π / 2-wx) (w > 0) is known to be PI ① Finding monotone increasing interval and symmetric central coordinate of function f (x) ② Find the value range of function f (x) in the interval [0,2 π / 3]
- 6. Why is the minimum positive period of function y = - 2Sin (3x - π / 3) 2 π / 3
- 7. The minimum positive period of the function y = 2Sin (1 / 3x + tt / 6) is
- 8. The period of sine function y = 3 / 2Sin (3x Pai / 6) Hurry!
- 9. The minimum positive period of function y = 1 / 2Sin & sup2; 3x No,
- 10. A problem of function f (x) = 2Sin π / 3x If the image f (x) = 2Sin π / 3x is shifted one unit image to the left, and then two units to the top, the image obtained is symmetric to the image y = g (x) with respect to x = 1, and G (x) is obtained
- 11. What is the radius and diameter of a 3 m road in a circular garden? What is the perimeter and area?
- 12. As shown in the figure: the area of the shadow part is 50 square centimeters, find the area of the ring in the figure
- 13. As shown in the figure: the area of the shadow part is 50 square centimeters, find the area of the ring in the figure
- 14. The area of the shadow in the figure below is 50 square centimeters, and the ring area can be calculated
- 15. The area of the shadow in the right figure is 50 square centimeters, so the area of the ring in the figure is
- 16. As shown in the figure, the radius of the small round field is increased by 5m to get the large round field. If the area of the field is doubled, the radius of the small round field is reduced=______ .
- 17. The radius of the small round field is increased by 5 m to get the large round field, and the area of the field is increased by 3 times
- 18. As shown in the figure, the radius of the small round field is increased by 5m to get the large round field. If the area of the field is doubled, the radius of the small round field is reduced=______ .
- 19. The radius of the small round field is increased by 5 m to get the large round field, and the area of the field is increased by 3 times
- 20. The value of 34 out of 25 of the root sign is