Question

A wire the shape of rectangle
whose daimeter 12×9cm if it rebent in the form of sqaure find side of sqaure

Answer 1

perimeter of rectangle = perimeter of square

perimeter of square is given by 4a

perimeter of rectangle =2( 12 + 9 ) = 42

=> 4a = 42

=> a = 42/4

=> a = 21/2

=> a = 10.5 cm