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Given that the center angle of the circle is 60 degrees and the arc length is 2 π cm, what is the radius length of the sector? With publicity, specific
A circle can be regarded as a fan with a 360 degree center angle. The arc length of a circle with a center angle of 1 degree is 1 / 360 of the circumference of the circle,
Let the radius of the sector be r cm
(60/360)x2πr=2π
R=6
6 cm long
If the arc length is 31.4 cm and the center angle is 150 °, what is the radius
The circumference is 31.4 × 360 △ 150 = 75.36 cm
So the radius is 75.36 ÷ 2 ÷ 3.14 = 12 cm
In a circle with a diameter of 12 cm, the arc length corresponding to the center angle of 150 ° is equal to______ cm．
150π×6
180=5πcm．
If an arc with a length of 31.4 cm corresponds to a circle center angle of 150 degrees, and the length of another arc in the same circle is 47.1 cm, then the degree of the center angle of the arc is
Let the angle of the arc to the center of the circle be x degrees
47.1：x=31.4；150
31.4x=7065
x=225
A: the angle of the arc to the center of the circle is 225 degrees
In a circle of radius 3, the arc length of the center angle of 150 degrees is: Triangle ABC is inscribed with circle O, angle c = 30 degrees, chord center distance od = 3, and arc length of two arcs divided by chord AB into circle O is calculated
In a circle of radius 3, the arc length of the center angle of 150 degrees is:
150/360*3.14*3*3=11.775
If the radius of the circle is 4cm, how many centimeters is the arc length corresponding to the central angle of 180 degrees? Thank you
The arc length is half of the perimeter, which is 4 Pai
In a circle with a radius of 4cm, the arc length corresponding to the central angle of 45 ° is______ .
45π×4
180=πcm．
The answer is π. Cm
In a circle with a radius of 3cm, the arc length corresponding to the central angle of 120 ° is equal to______ .
The arc length is 120 π × 3
180=2π（cm）．
So the answer is: 2 π cm
If the radius is 2 cm and the arc length is 3.14 cm, then the sector area is ()
This sector degree is x, Pai ≈ 3.14
4pai*x/360=3.14
pai*x=282.6
x=90
S=4*3.14/4
=3.14cm2
It is known that the center angle of the sector is 150 degrees, the arc length is 62,8 cm, and what is the area of the sector
150×2πr/360=62.8
r=24
24? π × 150 / 360 = 240 π cm2
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