The radius of a circle is 7 cm. Find its area to the nearest tenth.

Worth 30 points! in this diagram, both polygons are regular. what is the value, in degrees, of the sum of the measures of angles abc and abd?

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?