A circle with a radius of 15 ft is subdivided by a central angle. If the resulting arc length of the subtended arc is 10pi feet, what is the measure of the central angle?

that is the answer to the question

you can first factor out the n to get n(1+5). we know that 1+5 is 6, so we just have 6n.

or

step-by-step explanation:

we need to solve for 'x' the following equation:  

we have that:

⇒

⇒ ⇒

factorizing, we get that:

  ⇒

then, the solutions are: or

nothing extraneous has been found!