Question

if two angles of a triangle are complementary, then the triangle must be isosceles obtuse equilateral right

Explanation:

Step1: Recall triangle angle sum property

The sum of angles in a triangle is \(180^{\circ}\). Let the two complementary angles be \(x\) and \(y\) (\(x + y=90^{\circ}\)).

Step2: Find the third angle

Let the third angle be \(z\). Using the angle - sum formula \(x + y+z = 180^{\circ}\). Substitute \(x + y = 90^{\circ}\) into the formula: \(90^{\circ}+z = 180^{\circ}\). Solving for \(z\), we get \(z=180^{\circ}-90^{\circ}=90^{\circ}\).

Answer:

right