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प्रश्न
Find the area of a triangle whose sides are respectively 150 cm, 120 cm and 200 cm ?
उत्तर
The triangle whose sides are
a = 150 cm
b = 120 cm
c = 200 cm
The area of a triangle =`sqrt(s(s-a)(s-b)(s-c)`
Here 1s = semi perimeter of triangle
`2s=a=b=c`
`s=(a+b+c)/2= (150+200+120)/2 =235 cm`
area of triangle =`sqrt(s(s-a)(s-b)(s-c)`
`=sqrt(235(235-150)(235-200)(235-120))`
`=sqrt(235(85)(35)(115))cm^2`
`=8966.56cm^2`
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