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liq [111]
3 years ago
10

PLEASE HELP QUICKLY!!

Mathematics
1 answer:
svp [43]3 years ago
3 0

Answer:

3π

Step-by-step explanation:

To find the area of a sector, use this formula: (α/360) × πr²

α & r will be substituted by 120 and 3 respectively.

(120/360) × π(3²)

<em>Step 1: 120/360 is equivalent to 1/3.</em>

1/3 * π(3²)

<em>Step 2: Square 3 to get 9.</em>

1/3 * π(9)

<em>Step 3: Multiply 9 by π to get 9π</em>

1/3 * 9π

<em>Step 4: Multiply 1/3 by 9π</em>

3π

The area of sector DEF in terms of π is 3π.

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Answer:

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Step-by-step explanation:

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The radius of the circle =17 which is the length of the hypotenuse of the terminal ray through point b.

For an angle drawn in standard position through point b,

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Therefore, the angle is in Quadrant II.

\cos \theta=\dfrac{Adjacent}{Hypotenuse} \\$Adjacent=-8\\Hypotenuse=17\\\cos \theta=\dfrac{-8}{17} \\\cos \theta=-\dfrac{8}{17}

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Step-by-step explanation:

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