Determine the angle at the centre of a circle with radius 6.0 cm for an arc length of 8.0 cm.

3/4 radians

2/3 radians

4/3 radians

4π/3 radians

Third option.

Step-by-step explanation:

You need to remember that the formula used to calculate the arc lenght is:

Where "r" is the radius and "C" is the central angle in radians.

You need to solve for "C":

You know the radius and the arc lenght, therefore, you can substitute values to calculate the central angle in radians. Therefore, this is:

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )

38 was the other number of your question.