Answer:
No
Step-by-step explanation:
In a right triangle, the longest side (hypotenuse) has the property that the square of the hypotenuse = sum of squares of other two sides. This is a result of the Pythagorean Theorem
If we label hypotenuse as c and the other two legs of the triangle as a and b, then we have
a² + b² = c²
In the given triangle the sides are 35, 36 and 12 km
Longest side is 36
Check if 35² + 12² = 36²
35² + 12² = 1225 + 144 = 1,369
36² = 1296
Hence the a² + b² = c² relationship does not hold for sides of the given lengths
Answer: No, it is not a right triangle
