Find the length of a circle with diameter of 12cm and central angle of 30°
I think you mean "circular arc"
recall that s = rθ
where θ is in radians, not degrees.
A question are there 2 formulas for getting arc length
only one that I know of
To find the length of a circle with a diameter of 12cm and a central angle of 30°, we can use the formula for the circumference of a circle.
The formula for the circumference of a circle is C = π * d, where C is the circumference and d is the diameter.
In this case, the diameter is given as 12cm, so we can substitute this value into the formula:
C = π * 12
Now, let's calculate the circumference using the approximate value of π as 3.14159:
C = 3.14159 * 12
C ≈ 37.6991 cm
Therefore, the length of the circle is approximately 37.6991 cm.