The answer is 21 + 4x.
You find this answer by adding up all the sides.
9+12+4x= 21+4x ... you don't add 4x because it has a variable that we do not know of the value.
Answer:
non lo so
Step-by-step explanation:
False, they're perpendicular
120 degrees. Since a circle is 360 degrees all the way around and is sppit into 3 equal pieces, you do 360/3 which is 120
Answer:
your answer would be 9
Step-by-step explanation:
please mark this as brainlists
