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Seudónimo
17-03-2016
Mathematics
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apologiabiology
apologiabiology
17-03-2016
we know that angle2+angle3+90=180 (since we see the right angle in the corner and all internal angles add up to 180) so
angle3=40
subsitute
angle2+40+90=180
angle2+130=180
subtract 130
angle2=50
answer is 50 degrees
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