A triangle has side 35cm,54cm, and …
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Hans Raj 5 years, 6 months ago
semi-perimeter = s =35 + 54 + 61/2=150/2= 75
Area= {tex} \sqrt{s(s - a) (s - b) (s - c)}{/tex} Heron's formula
= {tex}\sqrt75({75 - 35)(75 - 54)(75 - 61)}{/tex}
= {tex} \sqrt{75(40)(21)(14)}{/tex}
= {tex} \sqrt{}{/tex} 25x3x5x8x3x7x7x2
= {tex} \sqrt{}{/tex} 52x32x72x42x5
= 5x3x7x4x {tex} \sqrt{}{/tex}5
= 420 {tex} \sqrt{5}{/tex} cm2
3Thank You