When a triangle has two congruent sides, it is called________ triangle.
When a triangle has two congruent sides, it is called________ triangle.
(a) Isosceles
(b) Equilateral
(c) Scalene
(d) Iso-scale
Isosceles triangle is a term for a triangle where at least two of its sides are equal in length. These two equal-length sides are typically called legs, and their opposing angles are equal as well.
- (b) Equilateral: all three sides are equal, not just two.
- (c) Scalene: no equal lengths, all lengths are different.
- (d) Iso-scale: this term is not a standard geometric term for triangles.