Answer: 
Step-by-step explanation:
Find the x-coordinate of the vertex with this formula:

In this case:

Substituting values, we get:
Now we can substitute the coordinates of the vertex into the equation
and then solve for "c".
Then:

Answer:
C I think
Step-by-step explanation:
sin a= opp/ hypotanuese
= 2 root 10/11
so C
if my answer helps please mark as brainliest.
Answer:
Area = 1/2 base x Height
Step-by-step explanation:
Since corresponding angles of similar triangles are congruent and triangles QRT and MRN are congruent, then:

Now, notice that angles RMN and RQT are corresponding angles, then, using the corresponding angle theorem we get:

Answer: Second option.