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,

Where S is the surface area
r is the radius
and
is the slant height
First, we will calculate the slant height of the cone
(<em>Pythagorean theorem</em>)




∴ The slant height is 10.6 ft
Now, for the surface area




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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the decimal expansion is 0.31818181818182
Answer:
2√2 / 3 (first answer choice)
Step-by-step explanation:
If tan Ф < 0, then Ф must be in either Quadrant II or Quadrant IV.
If sin Ф = +1/3, then Ф (for this problem) is in Quadrant II.
Remembering that sin Ф = opp / hyp = 1 / 3, we use the Pythagorean Theorem to find the adj side:
adj² + 1² = 3², or
adj² + 1 = 9, or adj² = 8. Since Ф is in Quadrant II, adj is negative.
The value of cos Ф = adj / hyp = √8 / 3 = 2√2 / 3
C. it is an or problem so it goes below and it does not have the equal to so it is a dashed line.
I did it digitally on my iPad hope it helps please mark me brainliest