squishycomeon
squishycomeon
25-01-2017
Mathematics
contestada
pleaaasse explain:)))
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twizzy1002
twizzy1002
25-01-2017
The first one is correct.
DC=AC
Answer Link
helpmetnx
helpmetnx
25-01-2017
Remember alternative interior angles... so angle BDC is 20° and angle BDA is 30
°
This means that the side lengths are equal
Hope this helps ;)
Answer Link
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