C

look at the corresponding angles to each side and you'll notice that z=x. Equilateral triangle.

therefore x+z=2x

2x/2=x

Here given the two sides denoted as =x and two angles are denoted as = \(a^0\)

So the third angle will also be \(a^0\) (as shown in the figure), because the angles of equal sides is also equal.

So the triangle represent an equilateral triangle.

Hence QTY A = QTY B. Hence option C

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Answer: C