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Xelga [282]
2 years ago
6

Questions in the picture! Can I have the answer to2 decimal place __.__cm2

Mathematics
2 answers:
vodomira [7]2 years ago
7 0

<u>Answer:</u>

area = 50.27 cm^2

<u>Step-by-step explanation:</u>

In the diagram, we see that the diameter of the circle is 8cm. Therefore the radius of the circle is 8/2 = 4cm.

area \hspace{0.15cm}of  \hspace{0.15cm}circle =  $\pi$r^2

                        = π (4)^2

                        = 50.27 cm^2

xxMikexx [17]2 years ago
3 0

Answer:

16П or approximately 50.3)

Step-by-step explanation:

The area of a circle is equal to П*r²

Since the circle is inside a rectangle with side that is equal to 8, we know that d = 8

2r = d

r = 8/2

r = 4

A = П*r²

A = П*16

А = 16П ( or 16*3.141592653589793238... = 50.26548... ≈ 50.3)

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rosijanka [135]

Please find the attached file for a better understanding of the solution provided here:

ABCD is the swimming pool and PQRS is the extent of the swimming pool plus the concrete walkway which is 6 yards wide.

Now, we know that the length is 8 yards shorter than twice it's width. Thus,

l=2w-8

Now the area of the region, A'B'QP will be: length x width. Now, the length here is l+6+6=2w-8+12=2w+4 and width is 6.

Thus, area of the region A'B'QP is (2w+4)x6=12w+24

Likewise, the area of the region D'C'RS will similarly be 12w+24 too.

Now, the area of the region BB'C'C will be 6 x w=6w

Similarly, the area of the region AA'D'D will be 6 x w=6w

Therefore, the total area of the walk way will be:

2(12w+24)+2\times 6w=570

24w+48+12w=570

36w+48=570

\therefore w=14.5

Therefore, length, l will be:

l=2w-8=2\times 14.5-8=29-8=21

Therefore, the dimensions of the swimming pool are:

Length, l= 21 yards and Width, w=14.5 yards


6 0
3 years ago
Read 2 more answers
2. The base of a circular cylinder has a diameter of 10 yards. The height is 11 yards. What is the surface area of the cylinder,
borishaifa [10]

Answer:

Step-by-step explanation:

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6 0
3 years ago
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y=-3

so the answer is  (-6,-3)

I hope that this helped you sweetie :)



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Answer:

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You get 8/4 which is 2

Step-by-step explanation:

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