thomasrad2013
thomasrad2013
12-03-2021
Mathematics
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Find angle a (use pic)
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maccabee678
maccabee678
12-03-2021
10x+8x+5+85= 180 (Triangle sum thm: all triangles add to 180 degrees)
18x+90=180
-90 -90
18x=90
x=5 ( now that you have x you can plug it in to angle a)
8(5)+5=45
So D
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