Which is the best way to ask for information from a congressman? A.
Would you be kind enough to send me your committee's report on education?
B.
Send me your committee's report on education.
C.
I need to know what your committee found out about education.
D.
I would like to know what your committee found out about education

19.side- angle- side

20. angle- side- angle

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.

2

step-by-step explanation: