25-08-2020
Mathematics

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What is the measure of x?

What is the measure of x class=

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unicorn3125 unicorn3125

26-08-2020

Answer:

x = 78

Step-by-step explanation:

[tex]m\angle BHD=180^o-x^o[/tex]

[tex]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[/tex]

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