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3 years ago

The longest straight line you can draw within this circle is 3.6 inches long. What is the circumference of this circle?

Mathematics

1 answer:

nydimaria [60]3 years ago

3 0

Answer:

18 inches.

Step-by-step explanation:

We can connect two points of a circle in many ways, as you can see in the picture below.

The longest straight line that you can draw to connect two points is the diameter, that is, the straight line that passes through the center of the circle.

If the circle has 9 inches of radius the diameter will be 9+9 = 18 inches.

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Karl needs to build a stage that has an area of 84 square feet. The length of the stage should be longer than the width. What ar

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3 years ago

Read 2 more answers

The Big Telescope Company sells circular mirrors. Their largest mirrors have radii of 5 meters and their smallest mirrors have r

pogonyaev

Answer: 1:5

Step-by-step explanation:

Given: The cost of every mirror is proportional to the cube of the mirror's radius.

i.e. $\dfrac{\text{Cost of smallest mirror}}{\text{Cost of largest mirror}}=\dfrac{(\text{radii of smallest mirror}^3)}{\text{(radii of largest mirror)}^3}$

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$\dfrac{\text{Cost of smallest mirror}}{\text{Cost of largest mirror}}=\dfrac{1^3}{(5)^3}=\dfrac{1}{125}$

The ratio of the total cost of 25 of the company's smallest mirrors to the cost of one of the company's largest mirrors will be:

$\dfrac{\text{Cost of 25 smallest mirror}}{\text{Cost of largest mirror}}=\dfrac{25\times 1}{125}=\dfrac{1}{5}$

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3 years ago

Circumference of 6cm ? help plz <3 heyyy b a e (bet you won't reply :)

Naily [24]

Answer:

If r = 6 cm, the the circumference is c = 2π(6) = 12π cm

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3 years ago