Teresa estimates that the height of a giraffe in a zoo is 18 feet. In fact, it is 16 feet tall. What is Teresa’s percent error? Use proportional relationships to solve the problem. Be sure to show all your work, provide your answer as a percentage, and round your answer to the nearest tenth.(4 points)
To find the percent error, we first need to find the difference between the estimated height and the actual height. The difference is 18 - 16 = 2 feet.
Next, we need to find the absolute value of the difference, which is |2| = 2 feet.
Then, we need to divide the absolute value of the difference by the actual height and multiply by 100 to find the percent error. So, (2/16) * 100 = 12.5.
Therefore, Teresa’s percent error is 12.5%.