Answer:
no
Step-by-step explanation:
This triangle is not a right triangle
If it were a right triangle, then the pythagorean theorum would work
a^2 + b^2 = c^2
12^2 + 7^2 = 15^2
144 + 49 = 225
This is not true because 144+49=193, not 225
So this triangle is not a right triangle
His average speed for the rest of the journey was of 48mph.
The number is 623.
