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Find the area of a triangle two sides of which are 18cm and 10cm and the perimeter is 42cm.
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(HERONS FORMULA)
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Answer:
perimeter of the triangle = sum of all sides .
perimeter = 18 cm + 10 cm + 42 cm .
perimeter = 70 cm .
spoo26:
herons formula
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S=A+B+C/2. Area =√S(S-A) (S-B) (S-C)
Answered by
1
Answer:
Perimeter of triangle = sum of all side
perimeter= 18 cm , 10 cm, 42 cm
perimeter = 70
this is your answer
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