Answer:
Area of ellipse is ≈ 77.78
Step-by-step explanation:
Given the dimension of ellipse
a = 4.5 m
b = 5.5 m
Now, Area of ellipse =
=
=
= 77.78
Hence Area of ellipse will be 77.78
Answer:
~77°
Step-by-step explanation:
cosQ = 9/40
inverse cosine(9/40) ≈ 77° = Q
2
Because -
2 x 12=12
2 x 13 = 36
2 x 42 = 84
Answer: Probability of meeting is 0.67
Step-by-step explanation: Since each person decided to wait for 20minutes thus within an hour a maximum of 40minutes is spent waiting by both parties.Therefore, Probability of meeting will be 40mins/60mins=0.666 approximately 0.67