Find the value of "X". If a factory produces three products, pen, pencil and eraser in the ratio 2 : X : 7. When this information illustrated on pie chart, the angle of the sector that represents the quantity of eraser produced is 140 degree.

Complete each statement from the information given and the triangle criterion you used. if the triangles cannot be shown to be congruent, leave the box for the second triangle blank and choose for reason “cannot be determined.” carbon - regular hexagon. ∆can ≅ ∆ by