Question

Which of the following represents the best way to calculate area of shaded region?

Answer 1

D: Calculate the area of one of the two overlapping sectors, then subtract the area of its triangle find the area of the segment, and multiply this are by two.

Explanation:

I just missed this question and this is the correct answer

Answer 2

The correct answer for the exercirse shown in the figure attached is the first option, which is: Calculate the area of the circle A and circle B and calculate the difference.

To calculate the area of the circle A and the circle B, you must apply the formula for calculate the area of a circle, which is shown below:

A=πr²

A is the area of the circle.
r is the radius of the circle.

To calculate the difference, you only have to substract the result of the area of the circle A and the area od the circle B:

At=Aa-Ab