First we would need the sector formula which is: 丌r^2× angle/360
To find the radius,we would have to divide the diameter by two,which is:
l8÷2=4 units
We would also need to find the total valuenof angles of pink sectors:
41+44+47=132°
As it's not mentioned,let's take pi as 3.14.
In this case,it would be:
(3.14)(4)^2(132°/360°)
=16(3.14)(11/36)
=18.4213..
≈18.4 sq. units
Thus the answer us D.18.4 units.
Hope it helps!