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Triangle ABCis right angled at a .AD is perpendicular to BC.If AB=5cm,BC=13cm and AC=12cm,Find the area of triangle abc .Aiso findthe length of AD.

  • Maths -

    I hope you can figure the area of ABC with no trouble.

    Using similar triangles, because angle B is the same in both, and both are right triangles,

    12/13 = AD/5
    AD = 60/13

  • Maths -

    Base of the triangle =13cm
    altitude of the triangle=12cm
    Area of the triangle=1/2(b)(a)
    ' =1/2(5)(12)
    =30cm2

  • Maths -

    60/13AD and 30cm2triangle of ABC.

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