Question

problem 7: (first taught in lesson 29) complete this sentence by selecting always, sometimes, or never. if a triangle is isosceles, then it is ______ scalene. after you pick your answer press go. a. always b. sometimes c. never

Explanation:

An isosceles triangle has at least two equal sides. A scalene triangle has no equal sides. These two definitions are mutually exclusive. So an isosceles triangle can't be scalene.

Answer:

C. never