S = (n-2) x 180 to find the total angles.
5-2*180
3*180
540
540-86-140-138-59=117
Answer:
i honestly have no clue
Step-by-step explanation: yeah
Answer:
x = 30
Step-by-step explanation:
9-x/5=3
Subtract 9 from each side
9-9-x/5=3-9
-x/5 = -6
Multiply each side by -5
-x/5 *-5 = -6*-5
x = 30
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