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Mathematics 11 Online
OpenStudy (anonymous):

If mGJI = 78 degress, calculate mGHI. Thanks!

OpenStudy (anonymous):

OpenStudy (valpey):

These are supplementary angles in a trapezoid. They sum to 180.

OpenStudy (anonymous):

Wait does a trapezoid equal 180?

OpenStudy (anonymous):

would GHI equal 102?

ganeshie8 (ganeshie8):

thats right! The sum of the opposite angles of a "simple" quadrilateral in a circle is 180°.

OpenStudy (anonymous):

thanks so much!

ganeshie8 (ganeshie8):

np...

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