A10 inch cookie cake is divided into 8 slices. what is the area of 3 slices

The area of 3 slices is  or approximate

Step-by-step explanation:

Find out the area of the cookie cake

The area of the circle (cookie cake) is

we have

----> the radius is half the diameter

substitute

Remember that the area of the complete cookie cake subtends a central angle of 360 degrees

If the cake is divided into 8 slices

then

The central angle of each slice is equal to

360/8=45°

The central angle of 3 slices is equal to

3(45°)=135°

By proportion

Find out the area of 3 slices

Let

x ----> the area of 3 slices

Simplify

----> exact value of the area of 3 slices

Find out the approximate value of the area of 3 slices

assume

substitute

why do wages differ across industries

step-by-step explanation :

micro economists are concerned with economics on an industry or individual firm basis.

macro economists are concerned with national and international level

gdp is the best phrase!