One interior angle of a heptagon is
128.57 degrees.
To find the measure of an interior angle of a regular heptagon (a heptagon with all sides and angles equal), we can use the formula:
Interior angle = (n-2) x 180 / n
where n is the number of sides/angles.
So for a heptagon (n=7), we have:
Interior angle = (7-2) x 180 / 7
= 5 x 180 / 7
= 900 / 7
= 128.57 degrees (rounded to two decimal places)
Therefore, the measure of one interior angle of a heptagon is approximately 128.57 degrees.