If a triangle has sides of length 3, 4, and 5, what type of triangle is it?

Quiz Options

• Equilateral
• Isosceles
• Scalene
• Right-angled

Explanation

A triangle with sides 3, 4, and 5 forms a Pythagorean triple, satisfying a^2 + b^2 = c^2 (3^2 + 4^2 = 9 + 16 = 25 = 5^2).