Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

In regular pentagon ABCDE, diagonal AC is drawn as shown. Given that each interior angle of a pentagon measures 108 degrees what is the measure of angle CAB?

OpenStudy (danjs):

|dw:1441155020989:dw|

OpenStudy (danjs):

bad drawing, but regular means all sides are the same length, so AB = BC, since ABC is an isocelese triangle, the two angles opposite AB and BC are the same

OpenStudy (danjs):

|dw:1441155154987:dw|

OpenStudy (danjs):

Angle B is given as 108 angles u and v are the same measure the total of u, v and 108 is 180 for the 3 angles of a triangle

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!