20. Go-Cart One and Go-Cart Two are on a \( 360- \) foot circular track. There is a camera at the center of the track for each go-cart. Camera One is following Go-Cart One, and Camera Two is following Go-Cart Two. If the angle between the two cameras is 40 degrees, how far apart are the two go-carts? (A) 30 feet

6. Consulta y escribe las formulas para hallar el número de diagonales de un poligono y la fórmula para hallar la suma de los ángulos interiores de un poligono. Luego, hallar el número de diagonales y suma de los ángulos interiores del: \( \begin{array}{llll}\text { a. Octágono } & \text { b. Hexágono } & \text { C. Dodecágono } & \text { d. Eneágono }\end{array} \)

4. Identify each of the following as an ellipse, circle, or hyperbola. Show how you determined it. a) \( x^{2}-2 x-4 y^{2}-16 y=19 \) answer: b) \( 2 y^{2}-6 y+2 x^{2}+36 x-45=0 \) answer: c) \( x^{2}+9 y^{2}+36 y-45=0 \) answer:

12. Mike used a coordinate plane to design the patio shown at the right. Each unit on the grid represents 1 yard. To buy materials to build the patio, Mike needs to know its perimeter. What the perimeter of the patio?

Con una escalera de \( z=36 u \) se desea subir al extremo de una barda de \( x=18 u \) de altura. ¿A qué distancia se necesita colocar la base de la escalera para que el otro extemo coincida con la punta de la torre?

6. Jennifer wants to plant a flower garden in the space shown. She wants to add a fountain that is 3 feet wide and 3 feet long. What is the area of the space left to plant flowers?