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. Show all your work and round your answer to the nearest tenth.(4 points)
To calculate the percent error, we need to find the absolute difference between Teresa's estimate and the actual height of the giraffe, divide it by the actual height, and multiply by 100 to get the percentage.
Absolute difference: |18 - 16| = 2
Percent error: (2 / 16) * 100 ≈ 12.5%
Therefore, Teresa’s percent error is approximately 12.5%.