• 2021 April(Z04) Math Question 19

    Angles

    - Collinear Points & Triangles

    Pythagorean Theorem and Special Right Triangles
    Choice A
    19. Loto begins at his back door and walks 8 yards east, 6 yards north, 12 yards east, and 5 yards north to the barn door. About how many yards less would he walk if he could walk directly from the back door to the barn door?

    Straight line=(8+12)2+(16−5)2

    =(20)2+(11)2

    =23(yard)

    Long way=(8+6+12+5)=31

    ∴Long way−Straight line=31−23=8(yards)

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