Question

Give ans .

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Answer 1

Solution is in the above photo.

Answer 2

Answer:

Step-by-step explanation:

(1) curved surface area of a cone = πrl

radius (r) of the base of the cone = (10.5/2)cm=5.25cm

slant height (l) of the cone = 10cm

curved surface area of the cone =πrl

                                                      = (22/7 * 5.25 * 10) cm square

                                                      = (22/7 * 525/100 * 10) cm square

                                                       = (22 * 75/100 * 10) cm square

                                                       = 165 cm square

(2) total surface area of the cone =  πr(r + l )

radius (r) base of the cone = (24/2)m = 12

slant height (l) of the cone = 21 m

total surface area of the cone =  πr(r + l )

                                                  = (22/7 * 12 * (12+21)) m square

                                                  = (22/7 * 12 * 33) m square

                                                   = 1244.57 m square

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