Which of the following triangles can also be an equilateral triangle?
A)acute
B)scalene
C)right
D)obtuse

Question

Quizplus · Accepted Answer

An equilateral triangle has three equal angles of 60 degrees each. An acute triangle has three angles less than 90 degrees, which means all angles are less than 60 degrees. Therefore, an acute triangle can also be an equilateral triangle. A scalene triangle has three sides of unequal length, so it cannot be an equilateral triangle. A right triangle has one angle of 90 degrees and the other two angles add up to 90 degrees, so it cannot be an equilateral triangle. An obtuse triangle has one angle greater than 90 degrees, which means the other two angles are less than 60 degrees, so it cannot be an equilateral triangle.

Which of the Following Triangles Can Also Be an Equilateral