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3 years ago

the pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Mathematics

1 answer:

Alona [7]3 years ago

3 0

Answer:

The horizontal cross section is a pentagon.

Step-by-step explanation:

It will be the same shape as the base which is a pentagon.

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Please help me now plz I will mark you brainliest

EastWind [94]

Answer:

1229 km

Step-by-step explanation:

The missing angle is ...

180° -60° -75° = 45°

Knowing that, the Law of Sines can be used to find the side opposite the 75° angle.

?/sin(75°) = 900 km/sin(45°)

? = (900 km)sin(75°)/sin(45°) ≈ 1229.423 km

The UFO is about 1229 km from KA-12.

5 0

3 years ago

The ratio of the base edges of two similar pyramids is 3:4. The volume of the larger pyramid is 320 in3. What is the volume of t

Andre45 [30]

Use similar volume to calculate
which is the (ratio of edges)^3 = (ration of volume)
so just put the numbers in, let the volume of smaller pyramid be y.
(3/4)^3 = y/320
27/64 = y/320
y=135in3

7 0

3 years ago

Read 2 more answers

5+x+(−2)=−85+x+(−2)=−8 x=?

sashaice [31]

$5+x+(-2)=-85+x+(-2)=-8\\
x-3=x-87=-8$
x has no solution.

5 0

3 years ago

What is 3x+5x(5-5) please help Add me on roblox dri_thebeat

Aleks [24]

Answer:

Step-by-step explanation:

3x+5x(5-5)

3x+5x(0)

3x+0

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3 years ago

Read 2 more answers

You need to wrap a present that you will put inside a cylindrical container. You’ll need to know how much will fit in the conta

nirvana33 [79]

Answer:

149.28 sq. inches

137.5 cubic inches.

Step-by-step explanation:

The cylindrical container has length or height (h) 7 inches and has a diameter of 5 inches i.e. radius (r) 2.5 inches.

Now, total surface area of the container = $2\pi r^{2} + 2\pi rh$

= $\frac{2 \times 22 \times (2.5)^{2} }{7} + \frac{2 \times 22 \times 2.5 \times 7}{7}$

= 39.28 + 110

= 149.28 sq. inches (Answer)

Again the volume of the container will be $\pi r^{2}h$

= $\frac{22 \times (2.5)^{2} \times 7}{7}$

= 137.5 cubic inches. (Answer)

6 0

3 years ago