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RIGHT TRIANGLE A triangle whole one angl...

RIGHT TRIANGLE A triangle whole one angle is a right angle is called a right-angled triangle or right triangle.

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Right triangle a triangle whose one angle is a right angle is called a right-angled triangle or a right triangle.

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Knowledge Check

  • Base of a right angled triangle is

    A
    `sqrt(("Hypotenous")^(2)+("Perpendicular")^(2))`
    B
    `sqrt(("Hypotenous")^(2)-("Perpendicular")^(2))`
    C
    `sqrt(("Perpendicular")^(2)-("Hypotenous")^(2))`
    D
    None of These

  • In a right angled triangle R is equal to

    A
    `(s+r)/(2)`
    B
    `(s-r)/(2)`
    C
    `s-r`
    D
    `(s+r)/(a)`

  • The ortho centre of a right angled triangle lies

    A
    outside the triangle
    B
    at the right angular vertex
    C
    on its hypotenuse
    D
    within the triangle

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