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rebecca1233

  • 3 years ago

Rectangle ADEF and isosceles trapezoid FBCE both have a base of 4. The lower base angles of the trapezoid are 45° and the legs of the trapezoid are 2. How long is BC? Round your answer to the nearest tenth.

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  1. rebecca1233
    • 3 years ago
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    |dw:1360253439938:dw|

  2. rebecca1233
    • 3 years ago
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    @Bri_Love

  3. rebecca1233
    • 3 years ago
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    0.9 1.2 1.5 1.8

  4. Bri_Love
    • 3 years ago
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    2. Draw FBCE with BC at the top, at FE as the base. Draw lines straight down from B and C to FE, to form triangles with angles, 45, 45, 90. This is a 1:1:sqrt(2) triangle the length of each of the sections is 6 / sqrt(2) = 3 * sqrt (2) There are 2 of the triangles. 12 - 2 * (3 * sqrt (2)) = 12 - 6 sqrt(2) = 12 - 8.485 = 3.5

  5. rebecca1233
    • 3 years ago
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    thats not an answer option

  6. rebecca1233
    • 3 years ago
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    i showed u the image

  7. Bri_Love
    • 3 years ago
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    D i think sorry

  8. rebecca1233
    • 3 years ago
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    can u help me with 2 more please

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