HELP DUE IN 15 MINS! In ΔABC, AB = 6 in, BC = 11 in, AC = 9 in. In ΔXYZ, XZ = 38.5 in, XY = 31.5 in, and YZ = 21 in. 1. . A

Question

HELP DUE IN 15 MINS! In ΔABC, AB = 6 in, BC = 11 in, AC = 9 in. In ΔXYZ, XZ = 38.5 in, XY = 31.5 in, and YZ = 21 in.

1. . Are the two triangles similar?

Answer choices for number 1Yes, the sides are all proportional or No, the sides are not proportional.??

2. What is the Scale Factor=??

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Thu Hương 4 years 2021-09-03T07:07:19+00:00 1 Answers 11 views 0

Answers ( )

  1. dangkhoa
    0
    2021-09-03T07:08:39+00:00
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    Answer:

    Let’s verify is the corresponding sides have same ratio:

    • ΔABC, sides: 6, 9, 11
    • ΔXYZ, sides: 21, 31.5, 38.5

    Ratios:

    • 6/21 = 2/7  (divide by 3)
    • 9/31.5 = 2/ 7 (divide by 4.5)
    • 11/38.5  = 2/7 (divide by 5.5)

    The ratios are same, so the triangles are similar

    • Yes, the sides are all proportional

    The scale factor (ΔABC to ΔXYZ) is 2/7 (or ΔXYZ to ΔABC is 7/2 = 3.5)

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