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larisa [96]
3 years ago
7

Please answer correctly! I will mark you as Brainleist!

Mathematics
1 answer:
kiruha [24]3 years ago
4 0

Answer:

V ≈ 1847.26

Step-by-step explanation:

<u>Circular Cone Formulas in terms of radius r and height h:</u>

The volume of a cone:

V = (1/3)πr2h

Slant height of a cone:

s = √(r2 + h2)

Lateral surface area of a cone:

L = πrs = πr√(r2 + h2)

The base surface area of a cone (a circle):

B = πr2

The total surface area of a cone:

A = L + B = πrs + πr2 = πr(s + r) = πr(r + √(r2 + h2))

Therefore, the solution V = πr 2h / 3 = π·142·9/  3 ≈ 1847.25648

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4 years ago
What are the dimensions of the tabletop with the
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Answer:

Dimensions of the tabletop is 2.8 cm × 2.8 cm.

Step-by-step explanation:

From the picture attached,

ABCD is a tabletop with leaves AEG, BEF, CFH and GDH.

Dimensions of the tabletop ABCD,

Length = AB

Width = BC

Coordinates of A → (1, 3)

Coordinates of B → (3, 5)

Coordinates of C → (5, 3)

Coordinates of D → (3, 1)

Length of segment = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

AB = \sqrt{(3-1)^2+(5-3)^2}

     = \sqrt{4+4}

     = 2\sqrt{2}

     ≈ 2.8 units

BC = \sqrt{(5-3)^2+(3-5)^2}

     = \sqrt{4+4}

     = 2\sqrt{2}

     = 2.8 units

Therefore, dimensions of the tabletop is 2.8 cm × 2.8 cm.

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Which numbers are located between 3.8 and 4.0
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