Two circular pieces of equal radii and maximum area, touching each other are cut out from a rectangular card board of dimensions 14 cm × 7 cm find the area of the remaining card board (π = (Use π = \(\frac{22}{7}\) and \(\sqrt{3}\) = 173 (11OD) Solution Here θ = 1°, r = 14 cm Question 18 In Figure, a semicircle is drawn with O as centre and AB as diameter Semicircles are drawn with AO and A OB as diameters If AB = 28 m, find the perimeter of the shaded region Use π = \(\frac{22}{7}\) (11OD) Solution Question 19But 22/7 Is Rational Number?
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