Question

what is the name of this kind of triangle? right isosceles equilateral scalene

Explanation:

An isosceles triangle has at least two sides of equal length. In the given triangle, two sides are marked as equal (by the tick marks), which is a key characteristic of an isosceles triangle. A right triangle has a 90 - degree angle (not indicated here). An equilateral triangle has all three sides equal (only two sides are marked equal). A scalene triangle has all sides of different lengths (contradicts the two equal - marked sides).

Answer:

B. Isosceles