How Does the Slope Change with Ramp Angle in Galileo's Experiment?

[ksaechao]

For my High School physics class, we're doing a lab based on galileo's experiment. My question is how does the slope change with the ramp angle? I'm just confused with all the data points I have. So if anyone could help me, I'd be much obliged.

 

[Kurdt]

Its down to simple trigonometry. I'm not sure what you mean by slope though? Do you mean the gradient (i.e. how much the change in height for every unit distance travelled).