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As shown in the figure, take point A on theline and draw a half circle P, of radius 0.5 withA as centre. It intersects given line in point B.Now taking B as centre draw a half circle P2 ofradius 1 cm which is on the other side of theline. Now again taking A as centre draw a halfcircle P3 of radius 1.5 cm. If we draw halfcircles like this having radius 0.5 cm, 1 cm,1.5 cm, 2 cm, we get a figure of spiral shape.Find the length of such spiral shaped figureformed by 13 such half circles.( 22 /7)​

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