Question

a triangle has two 65° angles and one 50° angle. is this triangle isosceles?
yes
no
submit

Explanation:

Step1: Recall isosceles triangle definition

An isosceles triangle has at least two equal angles (or two equal sides).

Step2: Check given triangle's angles

The triangle has two \(65^\circ\) angles (equal angles) and one \(50^\circ\) angle. Since there are two equal angles, by the angle - side relationship (equal angles imply equal opposite sides), the triangle has two equal sides. Thus, it is isosceles.

Answer:

yes