Question

The perimeter of a rectangle is 54 cm. If the width is (a) cm and the length is (a +4) cm.thenthe value of a is? ​

Answer 1

Answer:

perimeter =2(length+width)

=> 54=2(a+4+a)

=> 54/2=2a+4

=> 27=2a+4

=> 2a=27-4=23

=> a=23/2=11.5

the value of a is 11.5 cm