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PI 1 to 100
3.141 5926 5358 9793 2384 6264 3383 2795 0238 4197 1693 9937 5105 8209 7494 4592 3078 1640 6286 2089 9862 8034 8753 4211 7067 9321 4808 6513 2823 0664 7093 8446 0955 0582 2317 2535 9408 1284 8113 7450 2841 0270 1938 5211 0595 9644 6229 4895 4930 3819 6442 8810 9756 6503 3446 1284 7564 8233 7867 8316 5271 2019 0914 5648 5669 2346 0348 6104 5432 6618 2133 9360 7260 2491 4127 3724 5870 0660 6315 5881 7488 1520 9209 6282 9754 0917 1536 4367 8925 9036 0011 3305 3054 8820 4665 2138 4145 9
(2) the product of radius and circumference is equal to half of the circumference
The diameter and circumference of the circle were enlarged by 4 times
The product of radius and PI is equal to half of PI
Radius times Pi is equal to half of the circumference of a circle?
The circumference of a circle is equal to 2 π R, which is the knowledge in primary school textbooks. This means that the circumference of a circle is equal to twice the radius of a circle multiplied by the ratio of circumference. Now you multiply the circumference by a radius, which is half of the circumference of the circle
The greater the circumference, the smaller the smaller______ (judge right or wrong)
From the analysis, we know that the diameter of the big circle is large, and the circumference of the small circle is small. The ratio of the circumference of the circle to its diameter is the ratio of the circumference of the circle to its diameter, which does not change with the change of the size of the circle;
So the answer is: wrong
The ratio of circumference to diameter of a circle is called PI, which is a value of ()
The ratio of circumference to diameter of a circle is called PI, which is a constant value
The ratio of circumference to diameter of a circle is called PI. Is it right or wrong
Yes
The PI represents the same circle______ And______ It uses letters______ So the circumference of the circle is equal to______ Multiply______ It's C in letters=______ Or C=______ .
The ratio of circumference to diameter of a circle is expressed by the letter π. Therefore, the circumference of a circle is equal to the diameter multiplied by π, which is represented by C = π D or C = 2 π R
So the answer is: circumference, diameter, π, diameter, π, π D, 2 π R
When the circumference of a circle is fixed, its diameter is inversely proportional to its PI______ (judge right or wrong)
Because the PI is a fixed number and cannot change with the change of the diameter of the circle, the diameter of the circle is not proportional to the PI;
So the answer is: wrong
When the circumference of a circle is fixed, its diameter is inversely proportional to its PI______ (judge right or wrong)
Because the PI is a fixed number and cannot change with the change of the diameter of the circle, the diameter of the circle is not proportional to the PI;
So the answer is: wrong
When the circumference of a circle is fixed, its diameter is inversely proportional to its PI______ (judge right or wrong)
Because the PI is a fixed number and cannot change with the change of the diameter of the circle, the diameter of the circle is not proportional to the PI;
So the answer is: wrong
RELATED INFORMATIONS
- 1. The circumference of a circle is fixed, and its ratio is inversely proportional to its diameter. Right or wrong? The judgment of midterm exam, I hit X
- 2. Draw the largest circle in a square with a circumference of 32 decimeters. What is the area of the circle?
- 3. The circumference of a circle is the same as that of a square. The side length of the square is 6.28 cm. What is the area of the circle?
- 4. The diameter of a circle is 5 meters. What is its circumference? The ratio of circumference is 3
- 5. The position relation between circle x ^ 2 + y ^ 2-4x + 2Y + 4 = 0 and circle x ^ 2 + y ^ 2 + 2x-6y-26 = 0
- 6. Given the circle C1: x square + y square + 2x + 6y + 9 = 0 and circle C2: x square + y square - 6x + 2Y + 1 = 0, find the common tangent equation of circle C1 and circle C2
- 7. The linear equation of chord length 8 passing through point a (- 1,10) and cut by circle x2 + y2-4x-2y-20 = 0 is______ .
- 8. If two circles x2 + y2-10x-10y = 0 and X2 + y2-6x + 2y-40 = 0 intersect at two points, the equation of the line where their common chord is located is______ .
- 9. Find a point in the ellipse C: x ^ 2 + 4Y ^ 2 = 16. Find the equation of the line where the chord is located with a point a (1, - 1) in the ellipse x * 2 + 4Y * 2 = 16 as the midpoint
- 10. If the chord ab of the circle x ^ 2, y ^ 2 = 20 is made through the point P (2, - 3), and P bisects AB, then the equation of the line where the chord AB is located is
- 11. If the perimeter of an equilateral triangle is equal to that of a circle, then their area ratio is equal to
- 12. An equilateral triangle has a circumference of 2.4 decimeters and a height of 0.6 decimeters. Its area is () decimeters
- 13. It is known that the radius of circumscribed circle of regular hexagon is 2, and the area of regular hexagon is?
- 14. Formula for calculating the area of regular hexagon?
- 15. As shown in the figure, ∠ AOC: ∠ cod: ∠ BOD = 2:3:4, and a.o.b is on a straight line, OE.OF Divide ∠ AOC and ∠ BOD equally, og bisect ∠ EOF, and calculate ∠ GOF
- 16. Given the triangle ABC, the angle c is a right angle, and Ca = CB, D is the midpoint of CB, e is a point on AB, and AE = 2be, it is proved that ad is perpendicular to 2EB Using the scalar product of a plane vector, Should be AE = 2EB, verify that ad is perpendicular to CE
- 17. AB is the chord of circle O, AE, arc = BF, arc radius OE, of intersect a, B, C, D respectively, which indicates that OCD is isosceles triangle
- 18. 1. The vertical bisector of line AB is Mn, if point P is on Mn and PA = 10cm, then Pb=________ 2. On the triangle ABC, ab = AC, BC = 2, angle BAC = 30 degrees, the vertical bisectors on its three sides intersect at point O, then OA=———— 3. In the triangle ABC, ab = 7, AC = 5, ad is the center line of side BC, then the value range of ad is______
- 19. As shown in the figure, in the hexagon ABCDEF, AF ∥ CD, ab ∥ ed, ∠ a = 140 °, B = 100 °, e = 90 °. Calculate the degrees of ∠ C, ∠ D and ∠ F
- 20. As shown in the figure, it is known that AB is the diameter of ⊙ o, BC is the tangent point of point B tangent to ⊙ o, and the line AD / / OC passing through point a on ⊙ o, if OA = 2 and AD + OC = 6, then CD=