Given that the radius of the ball is 2, the two perpendicular planes cut off the spherical surface respectively to obtain two circles. If the common chord length of the two circles is 2, the distance between the centers of the two circles is equal to___ .

Let the centers of the two circles be O1 and O2, the center of the sphere is O, and the common chord is ab. if the point is e, oo1eo2 is a rectangle,
So the diagonal O1O2 = OE, and OE=
OA2-AK2=
22-12=
3，∴O1O2=
Three
So the answer is:
3．

Given that the radius of the ball is 2, the two perpendicular planes cut off the spherical surface respectively to obtain two circles. If the common chord length of the two circles is 2, the distance between the centers of the two circles is equal to___ .

The radius of the ball is 2, which is perpendicular to each other. The two planes cut off the spherical surface respectively to obtain two circles. The common chord length of the two circles is 2, and the distance between centers is

Radical 3

What is the arc radius with chord length of 50 and wrap angle of 100? 57.015 45.524 32.635 25.386

32.635% accuracy

How to find the length of arc chord A circular arc known radius, center angle, arc length, find the chord length

L arc length
Angle degree of N circle center
π pi
R radius
Arc angle = radian = L / R
Chord length = 2 (R * sin (arc angle / 2))
So:
Chord length = 2R * sin (L / 2R)
Hope the owner can understand. There is no diagram, it's not easy to understand

Given the chord length and radius of an arc, find the length (unfolded dimension) of an arc Chord length 19.95 radius 17 find arc length

sin@=19.95/(17*2)
(2*17*3.14)*（2@/360.）
Students:
Calculate the answer by yourself!

The radius of the circle is 1 and the distance from the center O to the plane α is 1 2, then the volume of the ball is () A. 6 pi B. 4 3 pi C. 4 6 pi D. 6 3 pi

Because the radius of the circle obtained from the sphere of the plane α intercepting the sphere o is 1, and the distance from the center of the sphere o to the plane α is 1
2，
So the radius of the ball is:
(
2)2+1=
3．
So the volume of the ball is 4 π
3 (
3)3=4
3π．
Therefore, B

Given that the radius of circle O is 1 and the chord length of AB is root 2, if we find a point on circle O such that AC = root 3, then the angle BAC=

75 or 15 degrees
According to Pythagorean theorem, the angle AOB = 90 degrees, because OA = ob, so the angle OAB = 45 degrees, from point O to AC as a vertical line, we can get the angle Cao = 30 degrees, there can be two points c, as shown in the figure, so the angle BAC = 45 + 30 or 45-30 degrees, the answer is 75 or 15 degrees

The arc length is 8980, the chord length is 8030, and the isolated height is 1750,

five thousand four hundred and eighty-two point three
Let the radius be r, and list R * r = (8030 / 2) * (8030 / 2) + (r-1750) * (r-1750)
Or R * r = (8030 / 2) * (8030 / 2) + (1750-r) * (1750-r)
Just untie it

Given that the radius of the ball is 2, the two perpendicular planes cut off the spherical surface respectively to obtain two circles. If the common chord length of the two circles is 2, the distance between the centers of the two circles is equal to___ .