A) \[{{17.5}^{o}}\]
B) \[{{27.5}^{o}}\]
C) \[{{37.5}^{o}}\]
D) \[{{47.5}^{o}}\]
Correct Answer: A
Solution :
\[\angle NAB=\angle NAC=\frac{1}{2}\angle A\] In \[\Delta ABC,\,\angle A={{75}^{o}}\therefore \frac{1}{2}\angle A={{37.5}^{o}}\] From \[\Delta ABN,\angle BAM={{20}^{o}}.\] \[\therefore \]\[\angle MAN={{37.5}^{o}}-{{20}^{o}}={{17.5}^{o}}.\]You need to login to perform this action.
You will be redirected in
3 sec