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Dimas [21]
3 years ago
9

Please help! I am stuck

Mathematics
1 answer:
marta [7]3 years ago
8 0
A. 27. 
we can prove that the two triangles within the triangle are congruent (the triangle is an isosceles) with SAS. then we do 180- (63 x 2). then we get the top angle. and then we divide 54 by 2 to make the individual angles and then we get 27. 
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