The answer is C because the triangles are congruent by angle side angle theorem. Two sets of matching angles with a pair of matching sides in between.
when solving questions like these always skip the whole flip it over part. look at the measurements and the order they are in across the shape and find the pattern in the answer.
The area of a sector = 0.5 * radius^2 * central angle measure (in radians)
So that:

sq in
Answer:
C. Both (1,11) and (-1,-5)
Step-by-step explanation:
Ok so,
let's try to plug in the first ordered pair into the equation. It should look like this:
11 = 8+3
11=11 CORRECT
now let's try to plug in the second ordered pair. it should look like this:
-5 = -8+3
-5 = -5 CORRECT
hope this helps. have a good day!!