question_answer

Direction for question: A ten sided figure A B C D E F G H I J is GIVEN below. The dimensions are given by \[EF=FG=GH=1\,\,cm,\] \[AB=AJ=CD=BC=3\,\,cms.\] Angle between any two sides is a right angle. Answer the question that follow the figure.

Perimeter (in cms) of the above ten sided figure is

A)  20 cms                       

B)  24 cms       

C)  28 cms          

D)  None of these.

Correct Answer: C

Solution :

Total perimeter of the figure is \[=JI+AH+AJ+HI+FG+EF+DE+CD+BC\]\[=6+6+3+3+1+1+1+2+3+3=29\,cm\]