Respuesta :

20. (a) a rectangle
      (b) a circle
      (c)  triangle

22.  volume = pi r^2 h
      10 = pi r^2 * 2
       r^2 = 10 / 2pi =  1,5915
        r = 1.262
diameter  = 2 *1.262 =   2.52 feet to the nearest hundredth Answer