Ventricular septal defects are the second most common defect. Ventricular septal defect occurs in about 25% of all infants born with a heart defect. These defects are more common in premature infants. Treatment for ventricular septal defect include reduce symptoms with medications, antibiotics, or surgery.
Heptagon. A heptagon is a seven-sided polygon. It is also sometimes called a septagon, though this usage mixes a Latin prefix sept- (derived from septua- , meaning seven) with the Greek suffix-gon (from gonia, meaning angle), and is therefore not recommended. The regular heptagon, illustrated above, has Schlaefli schlÃ¤fli. symbol
Heptagon is also called septagon ,which has 7 sides and 7 angles. For any polygon sum of interior angles is 180(n-2),where n is no. of sides. In case of heptagon n is 7. so sum of angles is 180*(7-2) = 900. i guess every geometric figure has a total degree of 360.