Gestation or the length of pregnancy of a cat averages 64 days. It is generally between 62 and 67 days or about nine or ten weeks. When litters are large, length is often less. When litters are small, the length of the pregnancy may increase.
The sum of the interior angles of an octagon is 1080 degrees. In a regular octagon, divide by 8 for each angle = 135Â°. The formula for this is Sum = 180 (n-2) where n is the number of sides. (or 180n - 360) You can take the polygon and make [N] triangles, with points touching at the 'center'.
The angle measure for each interior is 144 degrees each. Explanation: The angle measure of each interior angle of a regular decagon is 144Â°. Since a decagon is a 10-sided fâ¦igure, replace n by 10 in (n â 2) â¢ 180Â°. So the sum of the interior angle measures in a decagon is (10 â 2) â¢ 180Â°, or 8 â¢ 180Â° = 1440Â°. This is a regular decagon, so all ten interior angles are congruent. To calculate the measure of each interior angle in this regular decagon, divide 1440 by 10.