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Mathematics 9 Online
OpenStudy (anonymous):

The vertex angle of an isosceles triangle measures eight times the measure of a base angle. Find the measure of a base angle.

OpenStudy (watchmath):

2(base)+vertex =180 but vertex = 8 base so we have 2base +8base =180 10base=180 base =18

OpenStudy (anonymous):

can you draw it for clarity?

OpenStudy (watchmath):

|dw:1327028903721:dw|

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