1.

find the area of a triangle with perimeter 22cm , one side is 9 cm and difference of other two sides is 7 cm​

Answer»

Answer:

Step-by-step EXPLANATION:

LET the sides be a,b,c

a+b+c=22 is given

Case 1

Let b = 9cm

And a-c=7cm

So we GET a=10cm,b=9,c=3cm

This triangle is POSSIBLE since it follows the triangle law

Area will be according to herons formula

√(11×1×2×8)

area=4√11 sq.cm

Pleas let me know if the above SOLUTION is understandable.



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