Question

one angle of seven sided polygon is 240° and each of the other six angles is x° find x
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Answer 1

Step-by-step explanation:

180×5=900°(measure of angle of the whole fig)

let the other 6 angles be 6x

therefore

240+6x=900°

6x=900-240

6x=660

x=660÷6

x=110°