If Y is the incenter of STU find each missing measure

99 points at a zoo, the leopard pen has a ring-shaped sidewalk around it. the outer edge of the sidewalk is a circle with a radius of 12 m. the inner edge of the sidewalk is a circle with a radius of 8 m. (1 point for showing all of your work) a. write and simplify an expression for the exact area of the sidewalk. (1 point for the answer) b. find the approximate area of the sidewalk. use 3.14 to approximate π. (1 point for the answer)

Add the two expressions 3.8b - 7 and 2.9b + 9 enter your answer in simplified form

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?