since it is a right triangle there is one 90 degree angle and another of the angles is 45 degrees. there is 180 degrees in a triangle so the missing angle is 45 degrees.

The sum of the angles of a triangle is 180 degrees. A right angle is 90 degrees. So the sum of the remaining two acute angles of a right triangle is 90 degrees.

If it has one right angle (90 degrees), it is a right triangle. If it has one obtuse angle (more than 90 degrees), it is an obtuse triangle. If it has more than one acute angle (less than 90 degrees), it is an acute triangle.

the answer is 90 degrees A right angle measures 90 degrees. More than 90 degrees is an obtuse angle and less than 90 degrees is an acute angle. Any triangle with an angle that measures 90 degrees is known as a right triangle.

A triangle has 180 degrees. A right triangle has exactly one angle measuring 90 degrees. If you know that one of the other angles of the triangle is 20 then your third angle is: 180-90-20 = 70 degrees.

in a 30-60-90 right triangle, a right angle is always 90 degrees, the smallest angle has a measure of 30 degrees, and the remaining angle measures 60 degrees.

A right angle is formed when two lines meet at an angle whose measure is 90 degrees. A right triangle is a triangle in which one angle is a right angle. (Note: there cannot be more than one.)

70 degrees A right triangle has a right angle that measures 90 degrees, and the total number of degrees in a triangle is 180 degrees. 180 - 90 leaves 90 for the other two, and 90 - 20 = 70