<u>ANSWER </u>
and
<u>EXPLANATION</u>
Given;
and
The augmented matrix of the two linear equation is given by;
We now perform row operations;
.
This gives us
Hence and
In each circle, we have a sector that subtends an angle of 270 deg at the center, with a radius of 4
We can obtain the area of each sector as :
Given that there are 4 of such sectors, we have:
Answer = 151 square units
Subtract the sum of the two angles from 180 degrees. The sum of all the angles of a triangle always equals 180 degrees. Write down the difference you found when subtracting the sum of the two angles from 180 degrees.