Question

The measure of two angles of a triangle are 28° and 58°. Classify the triangle by
its angles.
A obtuse
B acute
C right
D equilateral

Answer 1

Answer:

  A  obtuse

Step-by-step explanation:

The sum of the given angles is 86°, so the third angle is 180° -86° = 94°. Its measure is more than 90°, so it is an obtuse angle. When a triangle contains an obtuse angle, it is classified as an obtuse triangle.