How would you classify a triangle with side lengths of 20 cm, 20 cm, 10 cm?

Question

How would you classify a triangle with side lengths of 20 cm, 20 cm, 10 cm?

Scalene

Equilateral

Isosceles

Right

Answer 1

A triangle is scalene if all of its three sides are different (in which case, the three angles are also different). If two of its sides are equal, a triangle is called isosceles. A triangle with all three equal sides is called equilateral.