question_answer

In\[\angle AOD\], the medians BE and CF intersect at G. AGD is a line meeting BC at D. If the GD = 1.5 cm, then AD is equal to:                                             

A) 2.5cm             

B) 3cm               

C) 4cm                            

D) 4.5cm           

Correct Answer: D

Solution :

                  Since, G is centroid of \[{{45}^{o}}\]such that \[{{60}^{o}}\] Given: GD= 1.5 cm \[{{75}^{o}}\] \[\angle CAD={{50}^{o}}\] \[\angle BED={{120}^{o}}\] \[\angle BCD\] \[{{75}^{o}}\]