Answer:
Both triangles are right triangles because the angle d is 90 degrees in both sides
3 ^ 2 - 2.25^2 = 1.98
4^2 - 1.98^2 = 3.48
x = 3.48
A
Step-by-step explanation:
We are given the function:
And we want to find:
Substitute:
And evaluate:
In conclusion, our answer is A.