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marta [7]
3 years ago
15

What is m∠BCD? A) 52° B) 64° C) 104° D) 116°

Mathematics
2 answers:
weqwewe [10]3 years ago
7 0

Answer:

B) 104

Step-by-step explanation:

Shalnov [3]3 years ago
3 0
Consider this solution:
if AB=AC, then
m(BCD)=180°-m(BCA).
In the triangle ABC m(BCA)=m(ABC)=(180-52)/2=64°.
Finally, m(BCD)=180-64=116°.

answer: D
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(ii)for similar triangles, we can write

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