The 3 inside angles of a triangle need to equal 180
you have 80 +60 = 140
so 51+x has to equal 180-140 or 40 degrees
51+x = 40
subtract 51 from each side
x = 40 - 51
x = -11
Answer:
Step-by-step explanation:
, which is our answer.
Hope this helps!
5/4 is already in the simplest form. It can be written as 1.25 in decimal form (rounded to 6 decimal places).
Step-by-step explanation:
20 I apologize if this is wrong
A triangle equals 180 so do the base divided by 180 and then the number you get you would split that number in half and then it should be the same number for both sides
