Question

which best describes the triangle? 80° 6 in. 6 in. 50° 50° 7.7 in. obtuse and isosceles acute and isosceles right and isosceles acute and scalene

Explanation:

Step1: Check angle - types

All angles ($50^{\circ}$, $50^{\circ}$, $80^{\circ}$) are less than $90^{\circ}$, so it's acute.

Step2: Check side - types

Two sides have a length of 6 in., so it's isosceles.

Answer:

B. acute and isosceles