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3 years ago

How are pyramids and cones different than prisms and cylinders?

Mathematics

2 answers:

lawyer [7]3 years ago

8 0

<span>pyramids are prisms that come to a point and cones are cylinders that come to a point</span>

vazorg [7]3 years ago

7 0

Answer:

A prism is a polyhedron which has two congruent bases and a pyramid has only one base

A cylinder has two circular bases such that it's sides are curved not flat.

A cone has only one circular base with one vertex.

Step-by-step explanation:

A prism and a prism are three dimensional figures with sides and faces as polygons.

A prism is a polyhedron which has two congruent bases and a pyramid has only one base.

The base is not of the form of circle or oval.The sides and bases are always polygons.

The base can be square , triangle , rectangle etc.

Cone and cylinder are also three dimensional figures with some differences.

A cylinder has two circular bases such that it's sides are curved not flat.

A cone has only one circular base with one vertex.

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2 years ago

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2 years ago

Find the radius of the cylinder when volume is 304 cm^3 and height is 10 cm

aleksandr82 [10.1K]

Answer:

solution,

Volume of cylinder=304 cm^3

height=10 cm

Radius=?

Now,

$volume = \pi {r}^{2} h \\ or \: 304 = 3.14 \times {r}^{2} \times 10 \\ or \: 304 = 31.4 \times {r}^{2} \\ or \: {r}^{2} = \frac{304}{31.4} \\ or \: {r}^{2} = 9.68 \\ or \: r = \sqrt{9.68} \\ or \: r = \sqrt{ {(3.11)}^{2} } \\ r = 3.11 \: cm$

Hope this helps..

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7 0

3 years ago

Round to the nearest tenth.

inessss [21]

Answer: Angle A = 53.9 degrees

Step-by-step explanation: We have a right angled triangle with two sides clearly given and one angle to be calculated. If the angle to be calculated is angle A, then having angle A as our reference angle, line AC (10 units) is the adjacent, line CB is the opposite while line AB (17 units) is the hypotenuse. Having been given the adjacent and the hypotenuse, we can now use the trigonometric ratio as follows;

CosA = adjacent/hypotenuse

CosA = 10/17

CosA = 0.5882

By use of the calculator or table of values,

A = 53.97

Approximately to the nearest tenth,

A = 53.9 degrees

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3 years ago