Answer:
180 or 150
Step-by-step explanation:
good luck my friend
Answer:
R is a partial order
Step-by-step explanation:
The relation is reflexive
That is to say, aRa
The relation is antisymmetric, if aRb and bRa, then a=b
The relation is transitive, if aRb and bRc, then aRc
Answer:
option C is correct
Step-by-step explanation:
Please refer to the attachment
Answer:
a.
2x+4x+3x=180 sum of interior angle of the triangle is 180
9x=180
x=180/9=20
b.
x-20+x+10+x-20=180sum of interior angle of the triangle is 180
3x-30=180
3x=180+30
x=210/3=70
c.x+10+x+20+x=180 linear pair
3x+30=180
3x=180-30
x=150/3=50