This video covers the basic concepts of class 9th maths chapter 7 exercise- 7.2 i.e triangles. understand the concept, make notes and try solving concepts based on it. please like, subscribe and share the video. #maths #braintestsolution #vighnahartamaths #classnine #puzzle #vighnahartamaths #mathstricks #classninemaths #education #mathpuzzle #triangle #oneshot