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How do you find the length of an arc in a circle?
You can measure it with a string. If you want to calculate it based on other measurements, you can multiply the radius times the angle, assuming the angle is in radians. If the angle is in degrees, convert it to radians first.
How can a compass help in math?
A compass can be used to calculate distance by angle and to help draw circles as well as finding the radius, diameter, and circumference of the circle.
What is the square root of a right angle?
A right angle is 90 degrees. The square root of a right angle would be the square root of 90, which is 9.486.
What is the radius of a circle when the area is 706.9?
The area of a circle is found by the equation pi times r2. To calculate the radius from the area we need to divide the area by pi and get the square root of the result. if we use 3.1418 as a close approximation of pi, we get 706.9 ÷ 3.1418 = 225 and the square root of 225 = 15.
How do you calculate the square root of a right angle triangle?
Relax. You'll never be asked to do that. Only numbers have square roots. Triangles don't.
What is the formula to calculate the length of a chord given the included angle and radius?
the length is: 2rsin(1/2 theta) where r is the radius and theta is the included angle.
How do you calculate angle with only number of sides and radius?
There is not enough information to calculate an angle. At the very least, you need to know that the polygon is regular. You do not know that.
What is the formula for calculating the central angle given chord length and radius?
You can use the cosine rule to calculate the central angle.
How can you calculate the radius with the area given to you?
Area of a circle = pi x radius squared, so to get the radius, divide the Area by pi (3.14159), and then find the square root of that
How do you calculate the circumference of a circle when you have the area?
pi*radius2 = area radius = square root of (area/pi) circumference = 2*pi*radius
Calculate a sector of a circle if the angle is 150 degrees and the radius is 13cm?
The area of the sector is: 221.2 cm2
How do you calculate the radius if you have height and volume?
(assuming its a cylinder) volume = pi * radius2 * height so: radius = square root ( volume / ( pi * height ) )
If a hexagon has a radius center to point of angle of 6 what is the side of the hexagon?
27times square root of 3
How does one calculate arc length when given the radius and angle measure in degrees?
To find the arc length given the radius and angle measure in degrees, you must first convert the angle from degrees to radians, using the formula: Degrees = Radians X (pi/180). Then take the radians and the radius that you are given, and put them into the formula of Q = (a/r) where Q is the angle in radians, a is the arc length, and r is the radius. When you have this, simple multiply both sides by the radius to isolate the a. Once you do this, you have your answer.
How do you find the length of an arc in a circle?
You can measure it with a string. If you want to calculate it based on other measurements, you can multiply the radius times the angle, assuming the angle is in radians. If the angle is in degrees, convert it to radians first.
How do you calculate the length of an arc of a circle?
The length of the arc is equal to the radius times the angle (angle in radians). If the angle is in any other measure, convert to radians first. (radians = degrees * pi / 180)
What type of angle is formed by a tangent and a radius?
The angle between the radius and the tangent is a right angle of 90 degrees.
