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Mathematics 20 Online
OpenStudy (anonymous):

in this diagram, m ACB = 65. Find each of these. http://assets.openstudy.com/updates/attachments/50521baae4b02b4447c167fa-unknown11-1347558328939-screenhunter_02sep.1310.39.jpg 1. m ECD 2. m ACE

OpenStudy (kropot72):

ACB = 65 ACD = 90 BCD = ECF = 25 ECD = 360 - (ECF + ACF + ACD + BCD) = 360 - (25 + 90 + 90 + 25) = ?

OpenStudy (anonymous):

130

OpenStudy (anonymous):

what about the second one

OpenStudy (anonymous):

to calculate ACE ACE = ACF + FCE = 90 + 25

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

so its 115

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

thanks again

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