They sum to 90 degrees so they are complementary.
In a right angled triangle the two other angles are acute.
In a right angled triangle the two other angles are acute.
The question appears to relate to the angles of a triangle. 1) If angle 3 is acute then the other two angles can also be acute. In the case of an equilateral triangle all three angles are equal and acute. 2) If angle 3 is acute and one other angle is obtuse then the remaining angle is acute. 3) If angle 3 is acute and one other angle is a right angle then the remaining angle is acute.
If all three angles of a triangle measure less that 90 degrees (if all three angles are acute), the triangle is an acute triangle. A triangle that has a right angle (an angle the measures exactly 90 degrees) is a right triangle. (The other 2 angles will be acute angles.) A triangle that has an angle that is greater than 90 degrees (an obtuse angle), is an obtuse triangle. (The other 2 angles will be acute angles.)
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Yes. A triangle can have only one obtuse angle. The other two angles will always be acute.
An acute triangle can also be referred to as a "sharp triangle" because all of its interior angles are less than 90 degrees. This term emphasizes the characteristic of the triangle having angles that are acute.
A right-angled triangle must have acute angles at the other two vertices because those two angles have to be less than 90 degrees.
If it has 2 equal acute angles and 1 obtuse angle then it is an isosceles triangle.
Yes. And so does every other triangle. A right triangle is defined by having one 90 degree angle and two acute angles.
If one of its angles are greater than 90 degrees, and the other 2 angles are acute
The other 2 angles will be acute and the 3 angles altogether will add up to 180 degrees