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sertanlavr [38]
3 years ago
10

The diagram shows one way to develop the formula for the area of a circle. Pieces of a circle with radius r are rearranged to cr

eate a shape that resembles a parallelogram. Since the circumference of the circle can be represented by 2πr, and the area of a parallelogram is determined using A = bh, which represents the approximate area of the parallelogram-like figure? A = (2πr)(r) A = (2πr)(2r) A = (2πr)(r) A = (2πr)(2r)
Mathematics
2 answers:
IRINA_888 [86]3 years ago
7 0

Answer:

A = 1/2(2πr)(r)

Explanation:

The circumference of the circle, 2πr, is the measure completely around the circle.  When the pieces of the circle are rearranged, half of this circumference will be on the top of the parallelogram and half will be on the bottom.  This means the base will be 1/2(2πr).

The approximate height of the parallelogram is the radius of the circle; this makes the area

A = 1/2(2πr)(r)

Sergeu [11.5K]3 years ago
4 0

Answer: Option C.

Step-by-step explanation:

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hodyreva [135]

Answer:

(-4, -8)

Step-by-step explanation:

Use the substitution method.  x = -4, so y = (1/2)x - 6 becomes:

y = (1/2)(-4) - 6, or y = -2 - 6, or y = -8.

The solution is (-4, -8).

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3 years ago
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Ivahew [28]

Step-by-step explanation:

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3 years ago
A ballroom in a hotel has the shape shown. The manager needs to determine how much carpet is needed to recarpet this area. All a
Mars2501 [29]
Area of a rectangle=length x width


You have two rectangles:


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length=9 yd
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Second rectangle (the smallest)
length=6 yd
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7 0
2 years ago
What is the value of X in the triangle attached?
Juliette [100K]

Answer:

X = 22°

Step-by-step explanation:

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So,

(2x) + (103 - x) = 6x - 7

=  > x + 103 = 6x - 7

=  > 6x - x = 103 + 7

=  > 5x = 110

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Find the slope of the line passing through the points (2,-9) and )1,-3)
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Hi there!

\large\boxed{\text{slope =} 6}

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Simplify:

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3 0
2 years ago
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