Teresa estimates that the height of a girrafe in a zoo is 18 feet. In fact, it is 16 feet tall. What is Teresa's percent error? Use prepositional relationships to solve the problem.

Answer 1

To find the percent error, we use the formula:

Percent Error = (|Measured Value - Actual Value| / Actual Value) * 100

In this case, the measured value (what Teresa estimated) is 18 feet and the actual value is 16 feet.

So, the percent error is:

(18 - 16) / 16 * 100 = 2 / 16 * 100 = 0.125 * 100 = 12.5%

Therefore, Teresa's percent error is 12.5%.