A circle has a radius of 19 cm. Find the radian measure of the central angle that intercepts an arc of length 4 cm. Do not round any intermediate computations, and round your answer to the nearest tenth.

When are two distinct non vertical lines parallel

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.