# Child Labor #12

**Geometry**Level pending

Draw an asymmetric shaped - 'T', having dimensions of horizontal top AB = 7 with C on AB such that AC = 3. The vertical limb CD = 2015. When this 'T' is rotated in the plane of the paper around center at D, two concentric circles are produced as loci of A and B. Find the area of the annulus produced.

Note: Annulus is the ring-shaped portion between the two loci. Use : \(\pi = \dfrac{22}{7}\).