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In the figure below, RD = DC and RC is the diameter of the circle shown.

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Find the measure of ‚ą†DRC. Show work!

 Feb 24, 2019
edited by JoseyP  Feb 24, 2019
edited by JoseyP  Feb 24, 2019

Best Answer 

 #1
avatar+17253 
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DRC and DCR are the same angles in the triangle (opposite side lengths are the same)

The inscribed angle D encompasses a 180 degree arc ....so angle D = 90 degrees

Triangle = 180 degrees total =  90 + DRC + DCR        DRC and DCR are equal  so they are each 45 degrees.

 Feb 24, 2019
 #1
avatar+17253 
+3
Best Answer

DRC and DCR are the same angles in the triangle (opposite side lengths are the same)

The inscribed angle D encompasses a 180 degree arc ....so angle D = 90 degrees

Triangle = 180 degrees total =  90 + DRC + DCR        DRC and DCR are equal  so they are each 45 degrees.

ElectricPavlov Feb 24, 2019

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