6. What is the formulae for Density?
- Mass/volume
- mass X volume
7. Exterior angles of a Polygon?
- 360-interior angle
- 360/number of sides
- 180- exterior angle
8. Interior angles of a polygon?
- 180-Exterior angle
- 360/number of sides
9. Histograms: Frequency Density=?
- Frequency/Group width
- Area X Frquency