Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
eroshea
Group Title
If ABCDE is a regular pentagon and diagonals EB and AC intersect at O, then what is the degree measure of angleEOC?
 2 years ago
 2 years ago
eroshea Group Title
If ABCDE is a regular pentagon and diagonals EB and AC intersect at O, then what is the degree measure of angleEOC?
 2 years ago
 2 years ago

This Question is Closed

eroshea Group TitleBest ResponseYou've already chosen the best response.0
dw:1350441129403:dw
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
using the property that diagonals of regular pentagon trisect all the interior angles, we get angle OAB = OBC = 36 degrees (108/3, angle A=angle B =108 degrees) now can u find EOC ?
 2 years ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
by first finding AOB
 2 years ago

Asdianafghjkl Group TitleBest ResponseYou've already chosen the best response.0
Can you explain further? Sorry I can't understand :3
 9 months ago

hartnn Group TitleBest ResponseYou've already chosen the best response.1
diagonals of regular pentagon trisect all the interior angles so, angle ABO will be 1/3 times interior angle ABC so, angle ABO = 36 similarly angle BAO = 36 so angle AOB will be 180 3636 (because angle in a triangle sum upto 180) and since EOC is vertical to AOB EOC = AOB
 9 months ago

ClaP01 Group TitleBest ResponseYou've already chosen the best response.0
how do you know that the interior angle of ABC is 108?
 9 months ago

ClaP01 Group TitleBest ResponseYou've already chosen the best response.0
how do you find the angle A is 108 as well as the angle B? sorry I'm confused
 9 months ago
See more questions >>>
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.