how to find the third side of a triangle when two sides are given ? please explain by taking every type of triangle .eg-right , acute , obtuse triangle . take this as urgent Share with your friends Share 0 Neha Sethi answered this Dear student Consider the right triangle ABC, right angled at B.Let AB=3units , BC=4 units.To find AC.By pythagoras theorem, we know thatAC2=AB2+BC2AC2=32+42AC2=9+16AC2=25AC=5 units.So, third side is 5 units. Note: According to Pythagoras theorem Hypotenuse2=Base2+Height2and here Hypotenuse=ACBase=BC and,Height=AB Now in case of acute and obtuse triangle we cant find the third side when two sides are given we need some more information such as anglesshould be given or some methods are used to find the third side when two sidesare given which are taught in higher classes. Regards 0 View Full Answer Bhupender Singh answered this this are very easy the sterare given in your book 0 Om answered this Just use the divider and scale to measure it for acute & obtuse triangle. Yes for right angle triangle use formula h2=b2+a2 1 Aviral Dutt Trivedi answered this the formula is = x + x= 180 x= 180 - x x= answer 1 Manit Arora answered this as per the angle sum property the total would be 180 so we have to add the 2 no.s and then subtract it from 180 to get the desired answer 0
