Please help!!?

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  • 1 month ago
    Favourite answer

    Since the triangles are similar the ratio between like-sides from one triangle to the other is a constant ratio.

    Looking at the sides opposite the 30° angle, the ratio of small over large is:

    3/15 = 1/5

    So the ratio of the other sides has this same ratio:

    adjacent to 30°:

    4 / (2y) = 1/5

    hypotenuse:

    x / 25 = 1/5

    Now solve for both unknowns:

    4 / (2y) = 1/5 and x / 25 = 1/5

    2y = 20 and x = 25/5

    y = 10 and x = 5

  • 1 month ago

    if they are similar, then sides are all in the same ratio:

    4/2y = 3/15 = x/25

    4/2y = 3/15

    6y = 50

    y = 10

    3/15 = x/25

    15x = 75

    x = 10

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