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3 years ago

How will the circumference of the circle change if it is dilated by a scale factor of 4?

Mathematics

2 answers:

Stolb23 [73]3 years ago

5 0

The circumference of a circle has the formula:

C = 2 π r

Now when it is dilated by a factor of 4, this only means that the radius is also multiplied by a factor of 4, therefore the new circumference is:

C’ = 2 π (4 r)

C’ = 8 π r

So it also grows 4 times.

Answer:

The circumference will be 4 times greater than the original.

OlgaM077 [116]3 years ago

3 0

Answer:

Step-by-step explanation:

Just took the test

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Dafna11 [192]

Answer:

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Step-by-step explanation:

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Oksana_A [137]

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MakcuM [25]

Answer:

a) $w^{13} x^{5} y^{6}$

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Step-by-step explanation:

a) $(w^{2} xy^{3} )^{2}(w^{3}x )^{3}$

1. Distribute the second power (2) outside the first pair of parenthesis:

$(w^{2(2)} x^{2} y^{3(2)} )$

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b) $\frac{2x^{2} y^{5} }{6xy^{11} }$

1. Factor the number 6 (= 2 · 3):

$\frac{2x^{2} y^{5} }{2(3)xy^{11} }$

2. Cancel the common factor (2):

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