A) \[{{25}^{o}}\]
B) \[{{30}^{o}}\]
C) \[{{20}^{o}}\]
D) \[{{50}^{o}}\]
Correct Answer: A
Solution :
It is given that, ABCD is a rectangle \[\therefore \] \[\angle ADC={{90}^{o}}\] In \[\Delta \,ADC,\] \[\angle DAC+\angle ADC+\angle DCA={{180}^{o}}\] (Angle sum property) \[\Rightarrow \] \[{{65}^{o}}+{{90}^{o}}+x={{180}^{o}}\Rightarrow x={{25}^{o}}\]You need to login to perform this action.
You will be redirected in
3 sec