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olchik [2.2K]
3 years ago
12

A 50 centimeter piece of wire is bent into a circle. What is the area of this circle?

Mathematics
1 answer:
Korvikt [17]3 years ago
6 0

Answer:

198.95 cm²

Step-by-step explanation:

Circumference = 50cm

C = πD

D = C/π

r = D/2

r = 50/π/2

r= 7.957747…..cm

Area = π r²

A = π x 7.957747….²

A = 198.95 cm² (2dp)

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The diagram shows two nested triangles that share a vertex.Find a center and a scale factor for a dilation that would move the l
nasty-shy [4]

Transformation that changes the size of a shape is referred to as dilation.

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<u>The center of dilation</u>

From the diagram (see attachment), the triangles share a common vertex at (-1,1)

This means that, the center of dilation is (-1,1)

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To do this, we divide the side length of the small triangle with the corresponding side of the large triangle.

From the attached image:

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So, the scale factor (k) from large to small is:

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Read more about dilation at:

brainly.com/question/13176891

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3 years ago
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Irina-Kira [14]

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3 years ago
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VMariaS [17]

Answer:

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Step-by-step explanation:

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3 years ago
Read 2 more answers
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Answer:

x=9

Step-by-step explanation:

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8 0
3 years ago
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