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 :
![\begin{gathered} \text{Area of sector = }\frac{\theta}{360^0}\text{ }\times\text{ }\pi r^2 \\ =\text{ }\frac{270^0}{360^0}\text{ }\times\text{ }\pi\text{ }\times4^2 \\ =\text{ 37.7 square units} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Ctext%7BArea%20of%20sector%20%3D%20%7D%5Cfrac%7B%5Ctheta%7D%7B360%5E0%7D%5Ctext%7B%20%7D%5Ctimes%5Ctext%7B%20%7D%5Cpi%20r%5E2%20%5C%5C%20%3D%5Ctext%7B%20%7D%5Cfrac%7B270%5E0%7D%7B360%5E0%7D%5Ctext%7B%20%7D%5Ctimes%5Ctext%7B%20%7D%5Cpi%5Ctext%7B%20%7D%5Ctimes4%5E2%20%5C%5C%20%3D%5Ctext%7B%2037.7%20square%20units%7D%20%5Cend%7Bgathered%7D)
Given that there are 4 of such sectors, we have:
![\begin{gathered} \text{Area of shaded region = 4 }\times\text{ 37.7} \\ =\text{ }150.8\text{ square units} \\ =\text{ 151 square units} \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20%5Ctext%7BArea%20of%20shaded%20region%20%3D%204%20%7D%5Ctimes%5Ctext%7B%2037.7%7D%20%5C%5C%20%3D%5Ctext%7B%20%7D150.8%5Ctext%7B%20square%20units%7D%20%5C%5C%20%3D%5Ctext%7B%20151%20square%20units%7D%20%5Cend%7Bgathered%7D)
Answer = 151 square units
Answer: -2.5
Step-by-step explanation:
-15 divided by 1/2= -30
-30 times by 1/4= -2.5
Answer:
1C
2A
3B
4D
Step-by-step explanation:
I did it