3 years ago

Can someone help please

Mathematics

1 answer:

Zolol [24]3 years ago

3 0

Answer:

they're flipped

Step-by-step explanation:

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Orlov [11]

Answer: $1,475.8mm^{2}$

Step-by-step explanation:

1. If you join the top part and the bottom part of the figure, you obtain a sphere. Then, you must apply the formula for calculate the surface area of a sphere:

$SA_s=4r^{2}(3.14)$

Where r is the radius ( $r=\frac{10mm}{2}=5mm$ )

2. Then:

$SA_s=4(5mm)^{2}(3.14)=314mm^{2}$

3. The formula for calculate the suface area of the red part, which is a cylinder, is:

$SA_c=2(3.14)(r)(h)$

Where h is the height (h=32mm)

4. Then:

$SA_c=2(3.14)(5mm)(32mm)=1,004.8mm^{2}$

5. So, the total surface area is:

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3 years ago

What are the answers to these questions <br> Please help

svetlana [45]

Toby ...

Look at the drawing I made.
It's attached to my answer.
You can count the blocks.

Also ... stay inside tonight.
There's still going to be more rain around here.
Good luck.

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