Question

am i correct??

Answer 1

http://prntscr.com/imji5w

Answer 2

@563blackghost

Answer 3

i know that A+C=180

Answer 4

and then i plug in my answer into the x variable in A

so i just want to know did i do this correctly

Answer 5

How do you know that A + C = 180

Answer 6

Mhm I see, you are following the theorem as per a cyclic quadrilateral.

\[< A + < C = 180 \]
\[(3x + 6) + (x + 2) = 180\]
\[4x + 8 = 180\]
\[4x = 172\]
\[x = 43\]

\[< A = 3x + 6\]
\[< A = 3(43) + 6\]
\[< A = 129 + 4 = 133\]

Answer 7

Yes you did it correctly :)

Answer 8

thank you !