if the two lengths are not touching, carefully move one of them until they are. measure the length between the outside ends of the two lengths. this makes a triangle. An angle can be calculated by using trigonometry functions on two of the lengths of a triangle. these can be simple or rather complex
If the angle is 2x radians then the length of the arc is 2x*r units where the radius of curvature is r units. If you measure the angle in degrees, then the length of the arc is pi*x*r/90 units.
There is no constant relationship between units of length and units of angle.
Length of arc = pi*radius*angle/180 = 10.47 units (to 2 dp)
The side length of the square is about 3.54 units using Pythagoras' theorem for a right angle triangle
There is no constant relationship between units of length and units of angle.
If the angle is 2x radians then the length of the arc is 2x*r units where the radius of curvature is r units. If you measure the angle in degrees, then the length of the arc is pi*x*r/90 units.
84*r*pi/180 units of length where the radius is r units of length.
There is no constant relationship between units of length and units of angle.
If the sides of right angle triangle are 8 units and 15 units then the hypotenuse will be 17 units in length.
Length of arc = pi*radius*angle/180 = 10.47 units (to 2 dp)
The side length of the square is about 3.54 units using Pythagoras' theorem for a right angle triangle
There is no constant relationship between units of length and units of angle.
Suppose the angle of the arc is x radians and the length of the arc is a units. Then, if the radius of the circle is r units, a = rx or r = a/x So d = 2a/x units of length.
Degrees are units of angle measurement, while metres are units of length. The two units are therefore incompatible.
It's a right angle triangle and its length is 12 units of measurement.
The hypotenuse of the right angle triangle is 89 units in length
Because it is still length. It is measured along a curve (arc), rather than a straight line. It can be found by multiplying the arc angle (in radians) by the radius. So a complete circle has an angle of 2*pi radians. Multiply this by the radius and you have 2*pi*radius, which is the circumference of a circle (measured in units, not square units).