Answer:
Ross's percentage error is 1.69%.
Step-by-step explanation:
\sf{Percentage~ error= \frac{|Approximate ~-~ Actual|}{|Actual|}}
Ross got the approximate area as 12, while the actual area was 11.8. So, let's plug it in to the formula.
\sf{Percentage~ error= \frac{|Approximate ~-~ Actual|}{|Actual|}= \frac{|12-11.8|}{|11.8|}= \frac{|0.2|}{|11.8|}= \frac{0.2}{11.8} \approx 0.0169 }
Multiply 0.0169 by 100 to make it into a percent.
0.0169 * 100 = 1.69%
Ross's percentage error is 1.69%.
Hope thi helped have an amazing day! :)
