Answer:
between 10 and 12
Explanation:
Given the measure of angles:
m∠B = 70°
m∠C = 60°
m∠A = 50°
- We know m∠B = 70° because the sum of interior angles in a triangle is equal to 180°.
Following this information, since the side lengths are directly proportional to the angle measure they see:
Angle B is the largest angle. Therefore, side AC is the longest side of the triangle since it is opposite of the largest angle.
Angle C is the smallest angle, so the side AB is the shortest side.
Therefore, side BC must be between 10 and 12 inches.