A square mesaures 80 yd on a side. Bob and Rob begin running from the same corner. Bob runs along a side to an adjacent corner, and Rob runs along a diagonal to an opposite corner. They arrive at their respective corners at the same time. If Bob's speed was 8mi/h, what was Rob's speed? Express your answer as a decimal to the nearest tenth.

c = 11.3 mi/h

Step-by-step explanation:

Since Square has all of the same sides, hence bobs speed will be the same for all of the sides.

All of the sides are equal in a square

=> Let's consider the two sides along with the diagonal a right angled triangle

=>

Where c is the speed of Rob along the diagonal and b and c is the speed of Bob along the side

=>

=>

=>

Taking sq root on both sides

=> c = 11.3 mi/h

afjnawenkfnjaw; enkanwelwaklalejjaw; fij

step-by-step explanation:

a is the correct