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vivado [14]
3 years ago
14

Point A is the incenter of ΔDEF. What is the length of NA?

Mathematics
2 answers:
azamat3 years ago
5 0
LA = NA = MA

5x - 1 = 6x - 3

-x = -2

x = 2

LA = 5x - 1

LA = 5(2) - 1 = 9

NA = 9
ololo11 [35]3 years ago
5 0
The awnser the this geometry question is 9
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A volume of the cone is (1/3) the volume of a cylinder. The volume of the sphere is what fraction of the volume of the cylinder?
xenn [34]

Answer:

4/3

Step-by-step explanation:

To know this, let's write down the formulas for the volume of cylinder and sphere.

Vs = 4/3πr³   (1)

Vc = π r² h    (2)

Now, we do have a little problem here and its the fact that the sphere do not have a height like the cylinder do. But in this case so if you want to have an idea of the fraction of the volume, we will assume that the cylinder has the same height as its radius. Assuming this we have the following:

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From here, we can cancel out the values of π and r³:

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<h2>Vs = 4/3 Vc</h2>

Thus we can conclude that the volume of the sphere is 4/3 the volume of a cylinder.

Hope this helps

8 0
2 years ago
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How many ml of 20 percent acid should be added to pure acid to make 70 ml of 30 percent acid?
Novay_Z [31]

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How many ml of 20 percent acid should be added to pure acid

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8 0
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