Area addition and subtraction urgent?

This may seem tricky at first, but there is no need of any special formula! The white portion represents a circle if you change the position around and add them up! This means that the diameter for the white circle is 8, and the radius is 4. In order to find the area of the yellow space, we will have to subtract the area of the circle (all the white spaces added up) from the area of the square.

The area of the square is 64 cm^2.

The area of a circle is 2*pi*radius. Radius is 4, so the area of the white space is 8pi cm^2.

Now subtraction.

64cm^2-8pi cm^2

=64-25.13

=38.9 approximately.

The area of the yellow region is 38.9 cm^2. Hope this helps!

the balance is found at the link

step-by-step explanation: