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2 years ago

The radius of circle L is 22 cm.

Mathematics

2 answers:

den301095 [7]2 years ago

7 0

Answer:

Option B $44\ cm$

Step-by-step explanation:

we know that

The radius of the circle is half the diameter

Let

r-----> the radius of the circle

D----> the diameter of the circle

we have

$r=22\ cm$

$r=\frac{D}{2}$

Solve for the diameter

$D=2r$

substitute the value of r

$D=2(22)=44\ cm$

IrinaK [193]2 years ago

3 0

Diameter = 2*(radius)
The radius is half of the diameter, so if you were given the radius and need to find the diameter, multiply the radius by two. If you were given the diameter and need to find the radius, divide the dimaeter by two

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Step-by-step explanation:

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3 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

Read 2 more answers

If a cylinder with height 9 inches and radius rr is filled with water, it can fill a certain pitcher. How many of these pitchers

katrin2010 [14]

Answer:

9 pitchers

Step-by-step explanation:

Given

Cylinder 1:

$Radius = r$

$Height = 9$

Cylinder 2:

$Radius = 3r$

$Height = 9$

Required

How many pitchers' cylinder 2 can fill

First, we calculate the volume of both cylinders

Volume is calculated as:

$Volume = \pi r^2h$

For A:

$V_A = \pi r^2*9$

$V_A = 9\pi r^2$

For B:

$V_B = \pi (3r)^2 * 9$

$V_B = \pi *9r^2 * 9$

$V_B = 9* 9\pi r^2$

In (a): $V_A = 9\pi r^2$

So, we have ve:

$V_B = 9*V_A$

$V_B = 9V_A$

<em>If the first cylinder can fill 1, then the second can fill 9 pitchers</em>

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2 years ago