The 3 inside angles of a triangle need to equal 180 degrees.
You are given 28 for one.
The second on is adding 58 + 77 = 135 degrees.
X = 180 - 28 - 135 = 17 degrees
Answer:
make the answwer a decimal
Step-by-step explanation:
the fraction need to be a decimal
I think you could times 4 and 5 to get 20
Answer:
10 
Step-by-step
Reduce
to
and simply subtract.