The sides of a triangle are 42cm,34cmAnd20cm.calculate it's area and the length of the height on the longest side.
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do addition of all numbers
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Sides of triangle = 42cm,34cm,20cm.
Semiperimeter = 1/2[a+b+c]
= 1/2[42+34+20]= 1/2×96 = 48cm.
S-a = 48-42 = 6cm.
S-b = 48-34 = 14cm.
S-c = 48-20 = 28
Area of triangle= under root S(S-A)(S-B)(S-C).
SOLVE THIS YOU WILL GET YOUR ANSWER
Semiperimeter = 1/2[a+b+c]
= 1/2[42+34+20]= 1/2×96 = 48cm.
S-a = 48-42 = 6cm.
S-b = 48-34 = 14cm.
S-c = 48-20 = 28
Area of triangle= under root S(S-A)(S-B)(S-C).
SOLVE THIS YOU WILL GET YOUR ANSWER
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