Question

Which of the following can an isosceles triangle not be? an acute triangle a scalene triangle an equilateral triangle a right triangle

Answer 1

Answer;

A scalene

Explanation;

A triangle is a geometric figure with three sides and three angles that always add up to 180 degrees.

Based on properties triangles can be classified as equilateral, scalene, isosceles and right triangles.

Equilateral triangles has all the three sides and the angles equal, an isosceles triangle has two of its sides equal, and two angles that are known as the base angles equal. A scalene triangle has all the three angles and sides different from each other. A right triangle is a triangle in which one of the angle is right angle or is 90 degrees.

An isosceles triangle may be a right triangle, equilateral triangle, and also may be an acute triangle, however an isosceles triangle can never be a scalene triangle

Answer 2

I think the correct answer from the choices listed above is the third option. An isosceles triangle cannot be an equilateral triangle. An isosceles triangle is a triangle that has two sides of equal length. Hope this answers the question. Have a nice day.