Name a instrument used to measure the volume of liquid

In which figure is de bc ? a. figure 1 b. figure 2 c. figure 3 d. figure 4

Which expression gives you the distance between the points (5,1)and(9,-6)

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.