Calculate the length of BE

Answer:
BE = 72 cm
Step-by-step explanation:
[tex]\frac{AB}{BC} = \frac{BE}{CD}[/tex] (BPT Theorem)
[tex]\frac{20}{5} = \frac{BE}{18} \\[/tex]
⇒ 4 = [tex]\frac{BE}{18}[/tex]
⇒BE = 18 × 4
∴ BE = 72 cm
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