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Mathematics 7 Online
OpenStudy (anonymous):

an isosceles triangle has two angles that measure 75 degrees. what is the measure of the third angle of the triangle? A. 30 B. 40 C. 75 D. 90

OpenStudy (k_lynn):

Well what all do you know about triangles?

OpenStudy (anonymous):

they have 180 d

OpenStudy (anonymous):

o its 30 i got

OpenStudy (k_lynn):

Never mind. So if this triangle has 2 angles that have 75 degrees, and the whole triangle has 180 degrees, what do you need to do?

OpenStudy (anonymous):

cuz 180-75-75 is 30

OpenStudy (k_lynn):

Right.

OpenStudy (k_lynn):

Great job!

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