the ratio of the internal angle to the external angle in a regular polygon in 7:2. how many sides does the polygon have?

The ratio of its interior angle to its exterior angle is 7:2. Calculate the size of each interior angle and the value of n. For a regular polygon of n sides, each exterior angle has a measure of 360/n degrees. Since the exterior angle of each angle has measure 40 degrees, then the number of sides n=360/40=9 sides.

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answer: a and b

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