Marking as brainliest

x = 12.49 yd

Step-by-step explanation:

We know that the triangle has a right angle due to the symbol so that means we can use pythagoras theorem to calculate x.

However, we need to change the subject to a or b as we have the hypotenuse but not a side:

Now substitute in the known variables:

Square root both sides to find x:

x = 12.49 yd

Hope this helps!

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)