The sides of a triangle are …
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Rashmi Bajpayee 7 years ago
Using Heron's formula
s = (35 + 54 + 61)/2 = 75 cm
Area of trianlge = {s(s - a)(s - b)(s - c)}1/2
= {75(75 - 35)(75 - 54)(75 - 61)}1/2
= {75 × 40 × 21 × 14}1/2
= 210√10 sq.cm
Now Area of triangle = 1/2 × base x altitude
210√10 = 1/2 × 35 × altitude
Altitude = 12√10 cm
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