Question

A missing helicopter is reported to have crashed
somewhere in the rectangular region as shown
in figure. What is the probability that it crashed
inside the lake shown in the figure? (4 marks)
For a rectangular region

Length=9 km
Breadth = 4.5km


For a rectangular lake
length =3 km

breadth = 2.5 km​

Answer 1

Answer:b'length of the rectangular field=9Km

breadth of the rectangular field=4.5Km

area of field,A=length*breadth

=9*4.5

=40.5Km  

2

 

length of the lake=(9-6)Km

=3Km

breadth of the lake=(4.5-2)Km

=2.5Km

Area of lake,a=3*2.5

=7.5Km  

2

 

Pr=  

A

a

​

 

=  

40.5

7.5

​

 

=0.18

Thus the probability that it crashed inside the lake is 0.18

Step-by-step explanation: