I is C because you use the pythag theorem
Okay so you take the 12 feet I'm pretty sure you multiply 12 and 30 and then that's one of your answers and then the 12 and a 75 you must put those to together and that's an answer and you subtract your 12 x 30 and you're 12 x 75 and that's how you get your answer I am pretty sure that's how you and that's how you get your answer I am pretty sure that's how you do it
Answer:
54.4
Step-by-step explanation:
Area of a circle is
![A= \pi r^2](https://tex.z-dn.net/?f=A%3D%20%5Cpi%20r%5E2)
. The first one, a, the radius squared is 8*8=64. So
![A=64 \pi](https://tex.z-dn.net/?f=A%3D64%20%5Cpi%20)
. If you multiply in pi as 3.14, you'll have 200.96 square inches. The second one, b, the radius squared is 10*10=100. So
![A=100 \pi](https://tex.z-dn.net/?f=A%3D100%20%5Cpi%20)
square kilometers. If you multiply in pi as 3.14 you'll have 314 square kilometers. The third one, c, the radius squared is 14*14=196. So
![A=196 \pi yd^2](https://tex.z-dn.net/?f=A%3D196%20%5Cpi%20yd%5E2)
. Or you could multiply in pi as 3.14 to get 615.44 yd squared. For the last one, d, the radius squared is 22*22=484 cm. Therefore,
![A=484 \pi cm^2](https://tex.z-dn.net/?f=A%3D484%20%5Cpi%20cm%5E2)
, or multiply in 3.14 for pi to get 1519.76 cm squared. There you go!
Answer:
A: 77
Step-by-step explanation:
360 - 109 - 137 - 37 = 77