2 years ago

Please help me with this geometry question and show work

Mathematics

1 answer:

soldi70 [24.7K]2 years ago

8 0

(3) 8

Step-by-step explanation:

Note that ∆ADE is similar to ∆ABC. As such, the ratios of their legs are equal. Also note that AD = AB + BD.

BC/AB = DE/AD

BC/10 = 12/(10 + 5) = 12/15 = 4/5

BC = 10(4/5) = 8

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