Answer:
{-14,-26}
Step-by-step explanation:
lx+20l=6
So x+20 is either 6 or -6
x=6-20=-14
x=-6-20=-26
48 is the answer
option no 2 is correct
36 I hope is helpful
I need the attachment that goes with it
we know that
by the sum of interior angles of a triangle
so we have
we can simplify
and now we find the other angles