Hello I'm new to this site and I really need help!! My question is, A circle has a radius of 11 inches and a central angle AOB that measures 45 degrees. What is the area of sector AOB? Use 3.14 for pi and round your answer to the nearest tenth. I really appreciate it if someone could help me!

Question

anonymous · Answer

A) 47.5 in^2
B) 11.9 in^2
C) 8.6 in ^2
D) 4.3^2

anonymous · Answer

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anonymous · Answer

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anonymous · Answer

I really do not know how to work this site and I can't really see your response

anonymous · Answer

we can make a proportion, compare angle to angle and circumference to circumference

anonymous · Answer

Lol and how do you do that I'm like completely lost here?!

anonymous · Answer

Answer letter B

anonymous · Answer

$$
\Large \frac{	heta^{\circ}}{360^{\circ}}  = \frac{x}{\pi r^2 } 
$$

anonymous · Answer

we want to compare angle to angle and area to area

anonymous · Answer

The directions say to use 3.14 for $ \large \pi$, and radius is 11
$$
\Large \frac{45^{\circ}}{360^{\circ}}  = \frac{x}{3.14 \cdot  11^2 } 
$$

anonymous · Answer

Thank you both so much!

anonymous · Answer

now solve for x, cross multiply

anonymous · Answer

Ok I'm taking a math quiz right now and I don't get Math so can anyone help me with this quiz! Please!