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Nadusha1986 [10]
3 years ago
15

I need help please I will mark you brainlists

Mathematics
1 answer:
V125BC [204]3 years ago
6 0

Answer:

2. ΔABC is isosceles

Step-by-step explanation:

Given : m∠A = 50

m∠BCD = 180 - (m∠BDC + m∠DBC)

              = 180 - (100 + 30)

              = 50

then

m∠A = m∠BCD

therefore ΔABC is isosceles

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