Since the triangle is isosceles, the angles that are not on the 87 are both equal.
The other 2 angles can be solved like this
2x + 87 = 180
2x = 180 - 87
2x = 93
x = 93/2 = 46.5 degrees or B
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Step-by-step explanation:
The angle complementary to m<CDA is
m<BDC
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Answer:

Step-by-step explanation:
Reflection over x-axis transforms ABCD into A'B'C'D'. This is symbolized by 
Translation 6 units to the left and 1 unit up, transforms A'B'C'D' into A''B''C''D''. This is symbolized by 