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The given figure consists of and four sm...

The given figure consists of and four small semi-circles of A B equal; radii and two big len semi-circles of equal radii (each 42 cm). Find the area and perimeter of Two the shaded region 25. In 19. The total surface area of a hollow cylinder which is open from both sides is 3575 cm

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The given figure consists of and four small semi-circles of A B equal; radii and two big len semi-circles of equal radii (each 42cm). Find the area and perimeter of Two the shaded region 25. In 19. The total surface area of a hollow cylinder which is open from both sides is 3575cm

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