O-LevelAdditional MathematicsDifferentiation and integrationMay/June 2016Paper 1 Q109 Marks
The diagram shows a badge, made of thin sheet metal, consisting of two semi-circular pieces, centres B and C, each of radius x cm. They are attached to each other by a rectangular piece of thin sheet metal, ABCD, such that AB and CD are the radii of the semi-circular pieces and AD = BC = y cm.
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