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Hello Friends Good afternoonPlzzz solve these and plzz don't spam.Find the area of a triangle whose sides are 34cm, 20cm and 42cm. Hence find the length of the altitude corresponding to the shortest side. |
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Answer» Answer: Sides of the TRIANGLE are a=42,b=34,c=20 According to Hero's formula, Area of the triangle, A= s(s−a)(s−b)(s−c)
Where s= 2 a+b+c
= 2 42+34+20
=48 Now, A= 48(48−42)(48−34)(48−20)
A= 48(6)(14)(28)
A= (6×8)(6)(14)(14×2)
A=14×6×4 A=336cm 2
Let the height corresponding to longest side (42cm) is h Area = 2 1
×base×height 2 1
×42×h=336 h= 42 336×2
=16 cm Step-by-step explanation: Alle apko Kya hua....... |
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