Question

a cone Gad a circular base with a diameter of 18 inches and has a height of 12 inches. To the nearest square inch, what is the lateral surface area?

Answer 1

Answer:

• 424 square inches

Step-by-step explanation:

given diameter=18 inches

so , radius = 9 inches

height = 12 inches

lateral surface area of cone =πr√r²+h²

                                               =3.14×9×√9²+12²

                                               =3.14×9×15

                                               =423.9

                                               ≈424 square inches