Question 320363
4π/16

area of square= 4m x 4m = 16m2

area of all 4 circles = 4(πr^2)
=4((π(1^2))
=4(π x 1)
=4π

probability of dart going in circles = area of circles/area of square

= 4π/16.

Now, 4π/16 = 4(3.14)/16 = 0.785, which can be rounded to two decimal places to become 79%.

Choice d.


NOTE: MY REPLY:

Well, 79% represents the probability of the dart going into the shaded region.  Understand?