Question

The lengths of the sides of a triangle are 3, 3, 3 square root of 2. Can the triangle be a right triangle?

Answer 1

if a triangle is a right triangle, the square of the longest side will equal the sum of the squares of the other two sides:

(3√2)² = 3² + 3²
18 = 9+9
18 = 18

The triangle is a right triangle.