I guess try A I really don’t know
Answer:
x=10
Step-by-step explanation:
The two triangles are similar since each triangle is the same shape of right triangle but different sizes. To find x, write a proportion between two equal ratios of side lengths.

Solve by cross multiplying.
28(3x) = 20(4x+2)
84x = 80x + 40
4x = 40
x=10
Answer:
the ASA similarity theorem
Step-by-step explanation:
As seen in the picture, the similarities are 2 sides and the angle between them
So the similarity is ASA, second answer choice