Square vs rectangle

Square and rectangle have the same area areas. The rectangle length is nine greater, and the width is six less than the side of the square. Calculate the side of a square.

Correct answer:

a =  18

Step-by-step explanation:

S1=S2 a2=(a+9)(a6) a2=a2+9a6a9 6 3a=9 6 a=9 6/3=18 S1=a2=182=324 S2=(a+9) (a6)=(18+9) (186)=324



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