S = (n-2) x 180 to find the total angles.
5-2*180
3*180
540
540-86-140-138-59=117
18.0 1
- 0.4 17.0
_____ - 0.4
-------> ____
17.6
Answer:
the subtraction
Step-by-step explanation:
Answer:
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Step-by-step explanation: