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Kay [80]
4 years ago
10

Circumference of a circle working out and awnser

Mathematics
1 answer:
Romashka-Z-Leto [24]4 years ago
5 0

Answer: d = 2.75 cm

Step-by-step explanation:

The formula for calculating the circumference of a circle is given as :

C = 2\pi r , where r is the radius

or

C =\pi d , where d is the diameter

using the second formula , since we are finding the diameter.

C=\pi d

that is

8.64 = d(\frac{22}{7})

multiply through by \frac{7}{22}

we have :

d = \frac{7}{22}(8.64) = 2.749090909

rounded to 2 d.p

d = 2.75 cm

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Answer:

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Step-by-step explanation:

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2 years ago
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Solve the system of linear equations using any method 6x+6y=-6, 5x+y=-13
Sergio [31]

Answer:

x=-3

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Step-by-step explanation:

To solve this problem you can use the elimination method:

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3 years ago
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kramer

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3 years ago
Maths question I'm struggling with.
Alex17521 [72]

Answer:

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Answer:

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