The height of a cone-shaped paper hat is 24 cm and the radius of the base is 7 cm. How much paper will be required to make 10 such hats?
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total surface area of cone = πr (r+l)
slant hight = root 7^2+24^2
slant hight root 28224
slant hight = 168 cm
3.14×7 (7+168)
3,846.5 cm^2
10 hats = 38465 cm^2
slant hight = root 7^2+24^2
slant hight root 28224
slant hight = 168 cm
3.14×7 (7+168)
3,846.5 cm^2
10 hats = 38465 cm^2
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