28 km
We calculate the circumstance by multiplying the diameter by Pi. Therefore to get the diameter we need to devide the circumstance by Pi
Speed equals distance over time.
16.5 km/ 0.25 hrs= 66 km/hr
Final answer: 66 km/hr
Answer:
Step-by-step explanation:
Let the width = x
=>length = 2x-1
91= x(2x-1)=2x^2-x
2x^2-x-91=0
=(2x+13)(x-7)
=> x=-13/2=> no
=>x= 7 cm
