Maths-
General
Easy

Question

Find the perimeter of the following figure.

  1. 10 cm    
  2. 20 cm    
  3. 15 m    
  4. 15 cm    

hintHint:

Add the perimeter of rectangle and triangle and then remove the common part

The correct answer is: 15 cm


    P e r i m e t e r space o f space t h e space f o l l o w i n g space f i g u r e space equals p e r i m e t e r space o f space t h e space r e c tan g l e space A G F B space plus space p e r i m e t e r space o f space t h e space t r i a n g l e E C D space minus 2 cross times s i d e space B F
space space P e r i m e t e r space o f space t h e space r e c tan g l e space A G F B space space equals 2 left parenthesis l plus b right parenthesis
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 2 left parenthesis 1 plus 4 right parenthesis
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 10 space c m
P e r i m e t e r space o f space t h e space t r i a n g l e E C D space equals 0.5 plus 1 plus 0.5 plus 2.5 plus 2.5
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 7 c m
P e r i m e t e r space o f space t h e space f i g u r e space equals 10 plus 7 minus 2
space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space space equals 15 c m

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