A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
help please
anonymous
 one year ago
help please

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i really need to finish my online class for the summer by 2morrow and i only have 17 questions left

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.0for the first one, the sector is half a circle

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.0do you remember the area of a circle?

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.0The area of a full circle, (or radius \(r\) and diameter \(d\)) is \[A_\text{circle}=\pi r^2 = \pi\left(\frac d2\right)^2 \]

UnkleRhaukus
 one year ago
Best ResponseYou've already chosen the best response.0Our sector is not a full circle (360°), but only 180° \[A_\text{sector}=\frac{180°}{360°}A_\text{circle }\\ \qquad=\frac12A_\text{circle}\\ \qquad=\tfrac12\pi r^2\\ \qquad=\tfrac12\pi\left(\frac d2\right)^2 \]

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what do u think inkyvoyd
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.