Question

Triangle abc is right angled at



a.Ad is perpendiculal to bc. If ab is 5cm ,bc is 13 cm,and ac is 12 cm . What is the length ofad

Answer 1

area of triangle by herons formula=30cm²

area of triangle ABC=1/2×base×height

30=1/2×13×h

h=30×2/13

h=4.6 cm

hence AD=4.6cm