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Mathematics 18 Online
OpenStudy (anonymous):

In the pentagon, what is the measure of angle S? a. 85° b. 95° c. 185° d. 275°

OpenStudy (anonymous):

OpenStudy (shamil98):

(n-2)180 = sum of the angles 3(180)= 540 = S + 133 + 94 + 111 + 107

OpenStudy (shamil98):

add those up and solve for s :)

OpenStudy (anonymous):

When I add them all up I got 445.

OpenStudy (agent0smith):

so you have 540 = S + 445 can you solve for S?

OpenStudy (shamil98):

540 = S + 445 -445 - 445 and you have your answer :)

OpenStudy (anonymous):

Got it! Thank you! (:

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