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Mathematics 8 Online
OpenStudy (anonymous):

CAN SOMEONE PLEASE HELP ME ?!!! WILL MEDAL & FAN !! HELP ASAP !! Determine the measure of the central angle for a regular 7-sided polygon, round answers to one decimal place. A. 25.7 degrees B. 51.4 degrees C. 61.4 degrees D. 62.2 degrees

OpenStudy (anonymous):

@triciaal can you help ?

OpenStudy (triciaal):

it's not B let me check the book

OpenStudy (triciaal):

the measure of each interior angle of a regular n-gon is 1/n*(n-2)*180

OpenStudy (anonymous):

so for n , do i put in the 7 ?

OpenStudy (triciaal):

yes

OpenStudy (triciaal):

what is the relationship between the interior angle and the central angle?

OpenStudy (anonymous):

I did the math & got 6300... that doesn't seem right .

OpenStudy (triciaal):

"A central angle of a regular polygon is an angle whose vertex is the center and whose sides contain two consecutive vertices of the polygon. You can divide 360 by the number of sides to find the measure of each central angle of the polygon."

OpenStudy (anonymous):

so it is B ?

OpenStudy (triciaal):

based on this definition yes it would be B 360/7 = 51.4

OpenStudy (triciaal):

"I did the math & got 6300... that doesn't seem right ." when i did that i got 128

OpenStudy (anonymous):

i did it wrong , my bad .

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