classical approach, relative-frequency approach,
subjective approach.
Answer:
44 cm
Step-by-step explanation:
Ratio of Circumference to it's diameter is always equal to pi. It is definition of pi (Like that's why it made), 'cause of constant value.
In short, Your Answer would be Option A) π
Hope this helps!
3 hours = 60 x 3 minutes = 180 mins.
Total windows = 30.
So, total time = 30 x 180
= 5400mins
= 90 hours