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vladimir1956 [14]
2 years ago
12

For an art project, a cone is covered with paper without any gaps or overlaps. The height of the cone is 28 inches and its diame

ter is 14 inches.
What is the surface area of the covering to the nearest square inch?
Mathematics
1 answer:
ra1l [238]2 years ago
7 0

The surface area of the covering of the cone to the nearest square inches is 788 inches²

<h3>Surface area of a cone</h3>

surface area of a cone = πr(r + l)

where

  • r = radius
  • l = slant length

Therefore,

diameter = 2(radius)

14 = 2r

r = 14 / 2

r = 7 inches

l² = 7² + 28²

l = √49 + 784

l = √833

l = 28.8617393793

l = 28.86 inches

Therefore,

surface area = 3.14 × 7 (7 + 28.86)

surface area = 21.98 × 35.86

surface area = 788.2028

surface area = 788 inches²

learn more on surface area here: brainly.com/question/13343525

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Option D -5x^3+8 satisfies the given conditions.

So, Option D is correct option

Step-by-step explanation:

We need to identify a 3rd degree binomial with a constant term of 8

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Looking at the options, Option D -5x^3+8 satisfies the given conditions.

So, Option D is correct option

Keywords: Degree of Polynomials

Learn more about Degree of Polynomials at:

  • brainly.com/question/12700460
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#learnwithBrainly

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