Question

what is the length of the missing leg? if necessary, round to the nearest tenth.
a = \square yards

Explanation:

Step1: Apply Pythagorean theorem

$$a^2 + 9^2 = 10^2$$

Step2: Calculate squared values

$$a^2 + 81 = 100$$

Step3: Isolate $a^2$

$$a^2 = 100 - 81 = 19$$

Step4: Solve for $a$

$$a = \sqrt{19} \approx 4.4$$

Answer:

4.4 yards