Question

which type of triangle matches the following description? a polygon with angles measuring 23°, 67°, and 90°. acute triangle right triangle obtuse triangle not a triangle

Explanation:

Step1: Recall triangle - angle definitions

An acute triangle has all angles less than 90°. A right - triangle has one angle equal to 90°. An obtuse triangle has one angle greater than 90°. The sum of interior angles of a triangle is 180°. Here, 23°+67° + 90°=180°, so it is a triangle. Since one angle is 90°, it is a right - triangle.

Answer:

B. Right triangle