The interior angles of a triangle always add up to 180 degrees. If you make one angle bigger, another angle will become smaller: The exterior angles of a triangle always add up to 360 degrees: In every triangle, the shortest side is always opposite the smallest interior angle. The longest side is always opposite the largest interior angle. âOppositeâ means that the side does not touch the point of the angle on either end. Equilateral triangles must have three angles of 60 degrees each, and all triangles with three 60 degree angles are equilateral.
Neuroblastoma is a very rare type of cancerous tumor that almost always affects children. 1  Neuroblastoma develops from nerve cells in the fetus called neuroblasts. 2  Usually, as a fetus matures and after birth, the neuroblasts develop normally. 3  Sometimes they become cancerous, causing neuroblastoma.
Although small, these glands dictate much of what happens in your body. Neuroblastoma is a cancer that develops from immature nerve cells found in several areas of the body. Neuroblastoma most commonly arises in and around the adrenal glands, which have similar origins to nerve cells and sit atop the kidneys. However, neuroblastoma can also develop in other areas of the abdomen and in the chest, neck and near the spine, where groups of nerve cells exist. Neuroblastoma most commonly affects children age 5 or younger, though it may rarely occur in older children. Some forms of neuroblastoma go away on their own, while others may require multiple treatments.