Question

sides of a triangle is 7cm,5cm,9cm. find the area of the triangle​

Answer 1

Answer:

√s( s-a) ( s-b) (s-c)

where s= a+b+c/2 put these values on this formula u will get solution

Answer 2

A=s(s﹣a)(s﹣b)(s﹣c)

s=a+b+c

2

Solving forA

A=1

4﹣a4+2(ab)2+2(ac)2﹣b4+2(bc)2﹣c4=1

4·﹣74+2·(7·5)2+2·(7·9)2﹣54+2·(5·9)2﹣94≈17.41228cm²

Step-by-step explanation:

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