Answer:
n
Step-by-step explanation:
Answer:

Step-by-step explanation:

Isolate d ; Divide both sides of the equation by 

Simplify

Note; Another formula for d(diameter) =

Whatever 180 - 109 =. I ain't doing all the word bro XD
Step-by-step explanation:
9 +6=15-6=9
so your answer should be 9
mark me brainliest lol