Answer:
0.9%
Step-by-step explanation:
We have been given that Rich measured the height of a desk to be 80.7 cm. The actual height of the desk is 80 cm.
We will use percentage error formula to solve our given problem.
[tex]\text{Percentage error}=\frac{\text{Experimental value-Actual value }}{\text{Actual actual}}\times 100[/tex]
[tex]\text{Percentage error}=\frac{80.7-80}{80}\times 100[/tex]
[tex]\text{Percentage error}=\frac{0.7}{80}\times 100[/tex]
[tex]\text{Percentage error}=0.00875\times 100[/tex]
[tex]\text{Percentage error}=0.875\approx 0.9[/tex]
Therefore, Rich's percent error in calculation is 0.9%.