A sector of a circle of radius 14cm is cut out. The angle of the sector is 250 (1) find the perimeter of the sector (2) if the sector is folded to from a cone, calculate the radius of the base of the cone.
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i) P=250÷360×2π×r+2r
=[25×7π/18 + 28] cm
ii) 250/360×2π14 = 2π×r
r = 25x7/18 cm
=[25×7π/18 + 28] cm
ii) 250/360×2π14 = 2π×r
r = 25x7/18 cm
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