if the sides of a triangle are 17 cm, 25 and 26 cm, find the area of the triangle.
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The area of the triangle is "204 cm^{2}cm2 ". ...
Here, a = 17 cm, b = 25 cm and c = 26.
∴ Semiperimetre = \dfrac{a + b + c}{2}2a+b+c.
= \dfrac{17 + 25 + 26}{2}217+25+26 c.
= \dfrac{68}{2}268 cm.
= 34 cm.
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