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March 26, 2017

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i have a question in math
(( distance between two points ))

the vertices of a right triangle are S(-2,-2), T(10,-2), and R(4,5). find the area of the triangle.

please in detales .. thank u

  • math - ,

    first of all, your triangle is not right-angled.
    The slopes are 7/6, -7/6 and zero
    None of these are negative reciprocals of each other, a condition for a right angle.

    But the area is easy to find
    Clearly the base ST = 12 units and the height from R to ST is 7

    So the area = 1/2 x 12 x 7
    = 42 units^2

  • math - ,

    thank u

  • math - ,

    can u explain how u get the height ?

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