Question

A
In the adjoining figure ADBC, BD = CD =
AC, ZABC = 27°, ZACD = y. Find the
value of y.
D
у
27°
B
с​

Answer 1

Answer:

y=180 - ADC*2 as ADC=CAD

ADC=180- BDC= 180- (180-2*27)=54 deg

y=180- 54*2=72 deg