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Gnom [1K]
3 years ago
7

Regular dodecahedron with s= 2 times the square root of three and a = 2.4

Mathematics
1 answer:
slega [8]3 years ago
5 0
I don't understand the question

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erastovalidia [21]
5) Obtuse triangle because the top angle is more than 90 degrees
6 0
3 years ago
The volumes of two similar figures are given. The surface area of the larger figure is given. Find the surface area of the small
frez [133]

Answer:

surface area of the smaller figure ≈ 1474.64 m²

Step-by-step explanation:

The figures are similar base on the question . The surface area and the volume of the larger figure is given while only the figure of the smaller figure is given.

To find the surface area of the smaller figure we simply use the ratios. That is the scale factors.

Therefore, they are similar figure the scale factor  can be represented as a:b.

The scale factor for volume is cubed.

volume of larger figure/volume of the small figure = a³/b³

4536/2625 = a³/b³

a/b = 16.5535451/13.7946209

Note that for two similar solid with scale factor a:b the surface area ratio is a²: b² (the scale factor is square)

16.55²/13.79² = 2124/x

273.9025/190.1641 = 2124/x

cross multiply

273.9025x = 403908.54840

x = 403908.54840/273.9025

x = 1474.6435261

x ≈ 1474.64 m²

4 0
3 years ago
Rudi bought 12.5 yards of fabric to make pillows. Each pillow requires 1.75 yards of fabric. Use compatible numbers to estimate
Ipatiy [6.2K]
Hi there!

Using compatible numbers it would be:

12 ÷ 2 = 6.

Now when you divide it, the answer would be close to 6.

So, 12 ÷ 2 = 6 would be using compatible numbers.

Hope this helps ;)
8 0
3 years ago
Read 2 more answers
Which is greater -8 or -4
laila [671]
-4 is greater look at number line
4 0
3 years ago
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What is significant about circles that provides us with an equilateral triangle?
Ipatiy [6.2K]

Answer:

The circle is important when constructing equilateral triangles because it can allow one to draw an accurate triangle while not having a ruler to measure it out.

Step-by-step explanation:

7 0
3 years ago
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