Alan invested in a savings bond for 3 years and was paid simple interest at an annual rate of 2%. The total interest that he earned was $48. How much did he invest.

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the 2 figures are congruent bc if you reflect abcd over the y axis then over the d axis the figures overlap

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq