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natka813 [3]
3 years ago
6

What is formula to calculate the area of circle​

Mathematics
2 answers:
Bond [772]3 years ago
8 0

Step-by-step explanation:

Area of circle

= \pi {r}^{2}

r = radius of the circle

agasfer [191]3 years ago
6 0

Answer:

\pir²

Step-by-step explanation:

A=\pir²

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2. The height of one square pyramid is 24 m. A similar pyramid has a height of 8 m. The volume of the larger pyramid is 648 m3.
Dmitrij [34]
Larger PyramidHeight 24 Volume 648

Pyramid Volume = (Area of the Base * Height) ÷ 3648 = Base Area * 24 / 3Base Area = 648 * 3 / 24Base Area = 648 / 8Base Area = 81Base Length = 9
a) The Scale Factor between the Small & Large PyramidLength - 3LATERAL Area - 9Volume - 27

Slant Height^2 = 4.5^2 + 24^2Slant Height^2 = <span> <span> 596.25 </span> </span> <span><span>Slant Height^2 = 24.4182308941 </span> </span>
b)
Large Pyramid Area = (½ * Perimeter of Base * Slant Height) + Base AreaLarge Pyramid Area = (.5 * 36 * <span>24.4182308941) + 81
</span>Large Pyramid Area = 439.5281560938 + 81
Large Pyramid TOTAL Area = <span> <span> 520.5281560938 </span> </span> <span>Large Pyramid LATERAL Area =<span> 439.5281560938 </span> </span>


**********************************************************************************c)
Smaller PyramidHeight 8Surface Area = 124
This pyramid has dimensions that are one third of the larger pyramid.Therefore, it has a base length of 3.Base Area = 9.
Its base perimeter would be 12.
Small Pyramid Volume = (Area of the Base * Height) ÷ 3Small Pyramid Volume = ( 9 * 8 ) / 3Small Pyramid Volume = 72 / 3
c) Small Pyramid Volume =24 cubic meters

d) Ratio of larger pyramid volume to smaller pyramid volume648 / 24 = 27The reason? Volume is a 3 dimensional quantity.  The Larger pyramid is 3 times larger in terms of the base measurement.9 meters vs 3 meters - a factor of 3When we compare volumes, we have to cube this factor.3^3 = 27

Source : http://www.1728.org/volpyrmd.htm

3 0
3 years ago
A population of caribou in a forest grows at a rate of 2% every year. If there are currently 273 caribou, which function represe
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Answer:

Step-by-step explanation:

D

C (t)= 273 (0.02)t

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Find the length of the base of a square pyramid if the volume is 48 cubic inches and has a height of 9 inches.
Nata [24]
The answer to your question, is 4 inches
hope this helps :D
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3 years ago
If the zeros of a quadratic function are 3 and 8, what are the factors of the function?
Nimfa-mama [501]

Answer:

(x-3)(x-8)

Step-by-step explanation:

the zero are what cancel out the factors.

6 0
3 years ago
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