Question

in triangle abc ab=ac perimeter of triangle abc is 70cm if ab:bc=5:4 then find area of triangle abc
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Answer 1

Step-by-step explanation:

AB:BC=5:4

let AB =5x

so according to the question AC=5x

and BC=4x

According to the question

5x+5x+4x=70

=>14x=70

=>x=70/14=5

AB=5x=5×5=25cm

AC=25cm

BC=5×4=20cm

next u do just by putting the formula