All you have to do is add up all of the sides.
then once you have X, for part 2 all you need to do is replace X with 4 and then solve
Step-by-step explanation:
the average velocity of a car that travels 50 km in 2 hrs = 50/2 = 25 km/hrs
A triangle is always 180 degrees. We know that one side is 50 degrees and two of our sides are equal so we can be sure that the other side is 50 degrees this gets us to 100 degrees leaving 80 degrees this means x= 80 degrees
I got 2.5 miles as my answer do you want to know how I got it...
Answer is below :-) .......