18^2 + 68^2 =
= 324 + 4,624
= 4,948
74^2 = 5,476
4,848 is not equal to 5,476.
Since the sum of the squares of the lengths of the two shorter sides is not equal to the square of the length of the longest side, the triangle is not a right triangle.
The answer is 2160. Do you need the steps ?
Answer:
hope it helps you see the attachment for further information
You would divide miles to hours amd get 57.5