Question

(SAT Prep) In △ABC, AB = BC = 20, DE ≈ 9.28. Approximate BD.
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Answer 1

Answer:

if BD and CE are equal than the answer will be 5.36

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BC=20.

BD+DE+CE=BC

BD+DE+CE=20

BD+9.28+BD=20. (BD=CE so I have taken BDinstead of CE)

2BD+9.28=20

2BD=20-9.28

BD=10.72/2

BD=5.36

Answer 2

Answer:

the correct value of BD is 5.36 or the appropriate value of BD is 5.4