Find the value of x. Round to the nearest tenth
A. 10.6
B. 6.3
C. 6.4
D. 22.6

D. 10.2

Step-by-step explanation:

Since the triangle is a right triangle we can use the Pythagorean theorem.

I will call the hypotenuse , so in this case:

and one leg will be , in this case:

and the unknown for this problem is the other leg which in the image is called .

So the formula for the  Pythagorean theorem:

clearing for x:

substituting  and :

the value of x is option D. 10.2

Step-by-step explanation:

the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap