2. The diagram below shows the construction of the center of the circle circumscribed about AABC.
This construction represents how to find the intersection of
(1) the angle bisectors of AABC
(2) the medians to the sides of AABC
(3) the altitudes to the sides of AABC
(4) the perpendicular bisectors of the sides of AABC

answer is 67%

step-by-step explanation:

g

step-by-step explanation:

5 pm

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.