Answer:
d. 28
Step-by-step explanation:
I'm pretty sure. Thank you
28
The angles of a triangle should equal 180⁰.
So you're equation would be:
50⁰ + (2x)⁰ + (3x - 10)⁰ = 180⁰
Simply written:
50 + 2x + (3x-10) = 180
Then you solve for x.
