Answer:
A≈113.1
Step-by-step explanation:
A=1
4πd2=1
4·π·122≈113.09734
Answer:
The answer is c.
Step-by-step explanation:
12*12 = 144 so It would be 12
7*7= 49 therefore, it would be 7
You would find the sign if the signs are not the same if you are dividing or multiplying its negitve if its the same its positive
It should be the point of tangency.
Answer:

Step-by-step explanation:
Distance covered by the train in crossing the pole = 100 m.






- Hence, the speed of the train is 72 km/h