¿que tipos de mapas se usan para ubicar relieves?¿que significa cada color?

What is the approximate circumference of the circle shown below? 12.2 cm

The blue segment below is a diameter of oo. what is the length of the radius of the circle?

Which example gives the relative location of a place? 50 main street 33 degrees n latitude, 91degrees w longitude east of the library 1600 pennsylvania ave., washington, d.c.