An triangle is also an acute and equilateral triangle.

A) Equiangular
B) Right
C) Isoceles

Option A

Step-by-step explanation:

Step 1:  Determine which option is correct

Option A: It makes sense because an equiangular triangles always has 60 degree angles and all sides are the same.  Therefore, it is both an acute and equilateral triangle.

Option B: It doesn't make sense because a right triangle cannot be an acute.  Also right triangles are not equilateral.

Option C:  It doesn't make sense because it only has two equal sides not three.  All equilateral triangles are isosceles but not all isosceles triangles are equilateral.

Option A