Help me please I’m so confused

Find the surface area of the shape below. Round your answer to two decimal places.

marin [14]

The surface area of the given shape is 285.01 ft²

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

From the question, we are to calculate the surface area of the given shape.

The given shape in the diagram is a cone.

The surface area of a cone is given by the formula,

$S = \pi r(r+l)$

Where S is the surface area

r is the radius

and $l$ is the slant height

First, we will calculate the slant height of the cone

$l^{2}=9^{2} +5.6^{2}$ (<em>Pythagorean theorem</em>)

$l^{2}=81+31.36$

$l^{2}=112.36$

$l}=\sqrt{112.36}$

$l=10.6 \ ft$

∴ The slant height is 10.6 ft

Now, for the surface area

$S = \pi \times 5.6(5.6+10.6)$
$S = \pi \times 5.6(16.2)$

$S = 90.72\pi \ ft^{2}$

$S = 285.0053 \ ft^{2}$

S ≅ 285.01 ft²

Hence, the surface area of the given shape is 285.01 ft²

Learn more on Calculating surface area of a cone here: brainly.com/question/27812847

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6 0

2 years ago

The XYZ company is seeing its value declining at a rate of 3.2% per year. If the current value is $2,300,000, what will the valu

slega [8]

Given that its value decreases by r = -3.2% (i.e decreasing means that the rate is negative) and that the current value of the company is P = 2,300,000.

The value of the company in n = 5 years is given by

$FV=P(1+r)^n \\ \\ =2,300,000(1-0.032)^5 \\ \\ =2,300,000(0.968)^5=2,300,000(0.8499) \\ \\ =\$1,954,810.81$