Diagram NOT accurately drawn $$\(A B C D\)$$ is a quadrilateral where $$\(A, B, C\)$$ and $$\(D\)$$ are points on a circle. $$\(A B=8 \mathrm{~cm}\)$$ $$\(B C=7.5 \mathrm{~cm}\)$$ Angle $$\(A B C=98^{\circ}\)$$ Angle $$\(A C D=35^{\circ}\)$$ Work out the perimeter of quadrilateral $$\(A B C D\)$$. Give your answer correct to one decimal place. $$\(\mathrm{cm}\)$$

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