The answer is C you just add both angles together and subtract the sum by 180 because that’s what triangles equal to. Leaving you with the answer of 78°! hope this helped :)
Answer:
254.34
Step-by-step explanation:
You first have to know the formula which is

You multiply 9 by 9 which gives you 81.

pi equals 3.14
so 3.14 × 81 = 254.34
Answer:
(2,11) is the smallest so it's closer to X-axis
Answer:
324
Step-by-step explanation:
Step-by-step explanation:
the coordinates of the midpoint are the mean value between the coordinates.
M = ((-6 + 0)/2, (4 + -8)/2) = (-6/2, -4/2) = (-3, -2)