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Aleksandr [31]
3 years ago
5

What is the measure of x?

Mathematics
1 answer:
dlinn [17]3 years ago
6 0

Answer:

<h2>            x = 78  </h2>

Step-by-step explanation:

m\angle BHD=180^o-x^o

m\angle DBH+m\angle BHD+m\angle HDB=180^o\\\\47^o+180^o-x^o+31^o=180^o\\\\78^o-x^o=0\\\\x^o=78^o

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