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Mathematics 15 Online
OpenStudy (geometry_hater):

In the figure below, ΔABC is an equilateral triangle. Which is the measure of angle ACD?

OpenStudy (geometry_hater):

i think its 120

OpenStudy (anonymous):

you are correct!

OpenStudy (geometry_hater):

i think its 120

OpenStudy (geometry_hater):

lmao i just guessed i have absolutly no idea how it is 120

OpenStudy (geometry_hater):

i think its 120

OpenStudy (geometry_hater):

I just thought since its equilateral the angle is 60 so i just did 180 - 60 = 120

OpenStudy (anonymous):

ok.. the sum of internal angles of triangle is 180º. So each angle of triangle is 60º. 180º - 60º = 120º !

OpenStudy (anonymous):

its right!

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