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Mathematics 12 Online
OpenStudy (brucebaner):

help me @ksanka

OpenStudy (brucebaner):

TheSmartOne (thesmartone):

Angle Q + Angle R = Angle T

OpenStudy (anonymous):

the sum of angles Q and R is equal to angle T. 127=63+Q Q=64

OpenStudy (brucebaner):

An exterior angle of a triangle is equal to the sum of the two interior angles that are not adjacent to that exterior angle. In this case, T is an exterior angle of the triangle, and Q and R are the two interior angles that are not adjacent to T. So, the measure of T is equal to the sum of the measure of Q and the measure of R. mT = mQ + mR 127° = mQ + 63° 64° = mQ Therefore, mQ is 64°.

OpenStudy (anonymous):

yes that's right

TheSmartOne (thesmartone):

@ksanka that is the explanation that is given when they put in the answer as 64 in case they wanted to know why :P

TheSmartOne (thesmartone):

That is the way how Study Island works lol :P

OpenStudy (anonymous):

yes @TheSmartOne

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