1.

If A = 25B = 30C = 80Then Find the area of triangle. ​

Answer»

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Sides -

a = 25 CM

b = 30 cm

c = 80 cm

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AREA of Triangle .

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The herons formula to find Area of Triangle is :

area(a) =  \sqrt{p(p - a)(p - b)(p - c)}

Where P is half PERIMETER.

p =  \frac{a + b + c}{2}

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\purple{\bold{\underline{\underline{Step-by-step\:explanation:}}}}

First find out the value of P.

p =  \frac{25+30+80}{2}  \\ p =  \frac{135}{2}

p = 67.5

Now Area is ,

a =  \sqrt{67.5(67.5-25)(67.5-30)(67.5-80)}  \\ a =  \sqrt{67.5 \times 42.5 \times 37.5 \times 12.5}

a =  \sqrt{1,344,726.56}

\boxed{a = 1,159.62346 \:cm^{2}}

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