Yes.
'a' and 'b' must both be acute, complementary angles.
Two. Two acute angles in a right triangle.
None. An acute triangle is one in which all angles are acute. An obtuse triangle is one in which one of the angles is obtuse. A right angled triangle is one in which one angle is a right angle (90o)
Such a triangle would presumably have one right angle, and two acute angles. A right angle has a measure of 90 degrees; an acute angle has a measure of less than 90 degrees. Since both of the other two angles in a right triangle must be acute angles, you'd think at first that every right triangle must be a right acute triangle. But when you go and look up the definition of an "acute triangle", it turns out to be a triangle in which all three angles are acute. So the fact is that there's no such thing as a right acute triangle, because the 90-degree angle in a right triangle is not acute.
Yes.
They are complementary.
complementary
Perhaps because you've misspelled them. When written correctly,the acute angles of a right triangle AREcomplementary.
No, they are complementary angles. Supplementary angles sum to 180o Complementary angles sum to 90o. The three angles of a triangle sum to 180o. If one is 90o (the right angle), then the other two sum to 180o - 90o = 90o and so are complementary.
In a right angled triangle the two other angles are acute.
In a right angled triangle the two other angles are acute.
They sum to 90 degrees so they are complementary.
'a' and 'b' must both be acute, complementary angles.
A right angled triangle can only have two acute angles.
A triangle with one right angle and two acute angles is called a right triangle. In a right triangle, one of the angles measures 90 degrees, making it a right angle, while the other two angles are acute, meaning they measure less than 90 degrees each. The Pythagorean theorem can be applied to solve for the lengths of the sides of a right triangle.
Two. Two acute angles in a right triangle.