4. Answer each of the following questions. W
(1) Find the area of a triangle with perimeter 22 cm, one side 9 cm and
difference of other two sides is 7 cm.
[CBSE 2010]
ingolo trinnolo moneuros 24 cm and its area is 60 cm2
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Answer:
1. let the one side be x
therefore, other side = 7+x
now,
Perimeter of triangle = (x+7+x+9)cm
22 cm = (x+7+x+9)
22 cm - 16 cm = 2x
therefore, X = 3 cm
therefore the sides are 9 cm , 3 cm and 4 cm ANS
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