Class : Class 5
Perimeter of 1st figure = 10+7+6+5+4+12 = 44 cm
In second figure two opposite sides make 7+7 = 14 cm
So, remaining two sides = 44 - 14 = 30 cm
So, one side is 30/2 = 15 cm
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Ans 2:
Ans 7:
Class : Class 6
DRAW THE DIAGRAM IN ROUGH AND LABEL ALL SIDES WITH CORRECT MEASUREMENTS. IF AB IS 8, ITS HALF WILL BE 4. 4'S HALF 2 AND SO ON.
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Ans 1:
Class : Class 9
I can disprove it, .....
take a=4,b=1,c=-5,.....
a+b+c=0, a+b=5 , 5>0......
see the question properly, it may be given that c is a natural number !!!