



 
Faris, Draw a diagram. The 45 degree angles are at B and C. D is the midpoint of BC. What does the symmetry tell you about the measure of the angle ADC? What is the Measure of the angle CAD? What is the length of AD? Penny Faris write back.
Faris, Can you answer my first question? What is the measure of the angle ADC? Penny  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 