Answer:
-180v^2
Step-by-step explanation:
multiply and calculate
Answer:
a equals 105°
Step-by-step explanation:
angles in a straight line add up to 180°
a+75=180
a=180-75
a=105°
The area of a sector is 339.336 cm²
The area of a sector is defined to be as the region of space bounded by a boundary from the center of the circle.
It can be determined by using the formula:
![\mathbf{A = \dfrac{\theta }{360}\times \pi r^2 }](https://tex.z-dn.net/?f=%5Cmathbf%7BA%20%3D%20%5Cdfrac%7B%5Ctheta%20%7D%7B360%7D%5Ctimes%20%5Cpi%20r%5E2%20%7D)
Given that;
- Radius r = 18 cm
- Angle θ = 120°
Then. the area of the sector can be calculated as:
![\mathbf{A = \dfrac{120}{360}\times \pi (18)^2 }](https://tex.z-dn.net/?f=%5Cmathbf%7BA%20%3D%20%5Cdfrac%7B120%7D%7B360%7D%5Ctimes%20%5Cpi%20%2818%29%5E2%20%7D)
![\mathbf{A = \dfrac{1}{3}\times 3.142 \times 324 }](https://tex.z-dn.net/?f=%5Cmathbf%7BA%20%3D%20%5Cdfrac%7B1%7D%7B3%7D%5Ctimes%203.142%20%5Ctimes%20324%20%7D)
A = 339.336 cm²
Learn more about the area of a sector here:
brainly.com/question/7512468?referrer=searchResults