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.
<span> 3 </span>1666666667⁄<span>10000000000
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That would be option A as the angles and sides ( the AS) have already been stated.
