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Shalnov [3]
3 years ago
9

Find the area of the shaded portion intersecting between the two circles.

Mathematics
2 answers:
defon3 years ago
8 0

Answer: A=16/3 pi - 8Г3

Step-by-step explanation:

Zolol [24]3 years ago
3 0
Look at the picture.

ΔABC and ΔBDC are <span>equilateral triangles.

Area of sector of a circle:
\dfrac{60^o}{360^o}=\dfrac{1}{6}\\\\area\ of\ a\ circle\\A_O=\pi r^2;\ r=4\\A_O=\pi\cdot4^2=16\pi\\\\A_s=\dfrac{1}{6}A_O\to A_s=\dfrac{1}{6}\cdot16\pi=\boxed{\dfrac{8}{3}\pi}

Area of the triangle ABC:
A_\Delta=\dfrac{a^2\sqrt3}{4};\ a=4\\\\A_\Delta=\dfrac{4^2\sqrt3}{4}=\dfrac{16\sqrt3}{4}=\boxed{4\sqrt3}

Area of the shaded portion:
A=2(A_s-A_\Delta)\\\\\boxed{A=2\left(\dfrac{8}{3}\pi-4\sqrt3\right)\approx2.89}
</span>

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3 years ago
I do not understand this problem could someone help me
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6 0
3 years ago
Read 2 more answers
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4 0
3 years ago
i keel asking for the dang answer why wont anyone tell me it a store sells pencils pens and markers that sells two times as many
babunello [35]

Answer:

Pencils = 325 ; Pens = 975 ; Markers = 650

Step-by-step explanation:

Let :

Number of Pencils = x

Number of pens = y

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z = 2x

3 times as many pens as pencils

y = 3x

x + y + z = 1950

Write z and y in terms of x in the equation :

x + 3x + 2x = 1950

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Divide both sides by 6

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x = 325

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6 0
2 years ago
26 out of the 65 magazines at the bookstore are women's magazines. What percentage of the magazines at the bookstore are women's
egoroff_w [7]

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40% is the answer

IMAGE PROVIDED.

7 0
2 years ago
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