Question

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Answer 1

Answered your question, suppose third side as x, 2 equal sides will be twice than the 3rd side -9, so it will be 2x-9, add them all and make them equal to 72

Answer 2

Answer:

let the third side be x m

= and let the equal side be (2x-9)m

now ACCORDING TO QUESTION

=>X+(2x-9)+(2x-9)=72 m

=> x+2x-9+2x-9=72m

=> 5x-18=72m

=> 5x =72+18

=>5x=90

=>x =90/5=18

so the equal sides = 2*18-9=27m

third side =18 m    

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