Find the measure of the central angle of an arc if its length is 43.98π and the radius is 18.

7.68 radians

Step-by-step explanation:

The arc length formula is s = rФ, where Ф is the central angle.

                                                                  s

Solving this formula for Ф, we get Ф =

                                                                   r

                                                                                      43.98π

and in this particular case, the central angle is Ф = , or

                                                                                         18

approximately 7.68 radians.

because linear equations are a lot simpler than quadratics equations, and linear equations formula is a lot easier to memorize. that's why i think they're harder.

your answer is 228

step-by-step explanation:

add the top and bottom bases together, then divide them by 2, then multiply by the height.