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CBSE Class 9 Answered

A triangle has sides 35 cm 54 cm and 61 cm long find its area also find the smallest of it's altitude altitude altitude
Asked by karanbora625 | 29 Oct, 2019, 12:16: PM
Expert Answer
A triangle has sides 35 cm 54 cm and 61 cm.
Let a = 35 cm, b = 54 cm and c = 61 cm
s = (a + b + c)/2 = 75 cm
Using Heron's formula 
 
Area of triangle we get 420√5 cm2 
 
Using Area of triangle = 1/2 × bh = 420√5 cm2 
1/2 × 35 × h =  420√5
h = 24√5 cm
Answered by Sneha shidid | 30 Oct, 2019, 09:38: AM
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