Triangle AABC is reflected across line n to create AA' B'C'. с
57
59°
A.
61
67°
B
B
n2
А
What is the measure of C?
I

answer: what

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

the opening of this porabola is facing up

step-by-step explanation:

5 + 8 +7 + 4 + 0 +1 = 25

step-by-step explanation: