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trasher [3.6K]
3 years ago
5

If two angles of a triangle measure 43 degrees and 48 degrees the triangle is

Mathematics
2 answers:
lina2011 [118]3 years ago
8 0
If 2 angles measure 43 and 48.....then the third angle measures (180 - (43 + 48) = 89......so ur 3 angles are 43, 48, and 89...because the angles of a triangle add up to 180 degrees.

This is an acute triangle......an acute triangle is a triangle that has all 3 angles that are  less then 90 degrees each.
seropon [69]3 years ago
7 0
The Triangle is Acute. 
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Neko [114]

Answer:

Volume: \frac{2}{3}\pi r^3

Ratio: \frac{2}{9}r

Step-by-step explanation:

First of all, we need to find the volume of the hemispherical tank.

The volume of a sphere is given by:

V=\frac{4}{3}\pi r^3

where

r is the radius of the sphere

V is the volume

Here, we have a hemispherical tank: a hemisphere is exactly a sphere cut in a half, so its volume is half that of the sphere:

V'=\frac{V}{2}=\frac{\frac{4}{3}\pi r^3}{2}=\frac{2}{3}\pi r^3

Now we want to find the ratio between the volume of the hemisphere and its surface area.

The surface area of a sphere is

A=4 \pi r^2

For a hemisphere, the area of the curved part of the surface is therefore half of this value, so 2\pi r^2. Moreover, we have to add the surface of the base, which is \pi r^2. So the total surface area of the hemispherical tank is

A'=2\pi r^2 + \pi r^2 = 3 \pi r^2

Therefore, the ratio betwen the volume and the surface area of the hemisphere is

\frac{V'}{A'}=\frac{\frac{2}{3}\pi r^3}{3\pi r^2}=\frac{2}{9}r

6 0
3 years ago
Solve the following proportion for y.<br> y/9 = 8/11<br> Round your answer to the nearest tenth.
jek_recluse [69]
Answer: 6.5

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8 0
2 years ago
The weight of an object is affected by gravity. Something that weighs 1 pound on earth will weigh 1.08 times that weight on Satu
laila [671]

Answer:

2.7 lb

Step-by-step explanation:

2x1.08=2.16

1/2x1.08=0.54

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2.70 = 2.7

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No. If it has three sides, then it's a triangle, and not a trapezoid.


8 0
2 years ago
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The measure of an angle is 167°. What is the measure of its supplementary angle?
Anna007 [38]

Answer:

x=13

Step-by-step explanation:

Supplementary angles add to 180 degrees

x+167 = 180

Subtract 167 from each side

x+167-167= 180-167

x = 13

8 0
3 years ago
Read 2 more answers
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