This is so confusing help please, I been in the process of moving Im having a hard time wrap my brain around this

See below.

Step-by-step explanation:

Sin=opposite/hypotenuse

Sin A=5/13

Sin B=12/13

Cos=adjacent/hypotenuse

Cos A=12/13

Cos B=5/13

Tan=opposite/adjacent

Tan A=5/12

Tan B=12/5

SO...

The measures of angles A and B can be found using any of these formulas for the answers of.

Approximately:

m<A=22.62°

m<B=67.38°

it's d

step-by-step explanation:

the diagram shows you   triangle def with de=4, df=9 and de≠df≠ef.

the sum of the lengths of two triangles' sides are always greater than the length of the third side:

substitute sides lengths:

then 5< ef< 13 (option 3 is true).

def is a scalene triangle with all sides of different lengths (option 5 is true, option 2 is false).

answer: correct choices are 1, 3 and 5