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3 years ago

Whats the perimeter of the figure below?

Mathematics

2 answers:

baherus [9]3 years ago

7 0

Answer:

Step-by-step explanation:

2+9+11+2+9+11

sp2606 [1]3 years ago

3 0

Answer:

Perimeter: 40 in

Step-by-step explanation:

You already know that perimeter refers to the lengths of the SIDES of a shape, so let's apply it here.

As we can see this is a hexagon, a shape with 6 SIDES

You are given the numbers 2, 9, 11, 2 already as 4 out of the 6 SIDES needed to solve this problem.

You need two more sides.

As you can see the sides that we're missing here has no numbers, but we can look at other side lengths and see if they can help.

The other side lengths that can help are 9 in and 2 in. Why? because when subtracted, they equal the missing length.

If you took away the 2 from the 9, you get a length of 7, which is one of the missing sides.

The NEXT missing side, you can determine by subtracting 11-2, because then you are left with the extra missing space. 11-2= 9

Now that we have 6/6 SIDES, let's now add.

7+9+2+2+9+11=40

Therefore your answer is 40 in.

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I need to find surface area of a cylinder. Formula being used: S.A= L x W +

Arturiano [62]

Answer:

90π yd²

Step-by-step explanation:

the surface area of a cylinder is the sum of the lateral area and twice the aera of one end of the cylinder: π·d·l, where l represents the length of the cylinder. Here, the lateral surface area is π·6 yd·12 yd, or 72π yd².

The two ends add the following to the total surface area:

2·π·(d/2)², or 2π·d²/4.

Thus, the total surface area of the cyl. is

A = 2π·(6 yd)²/4 + 72π yd², or

A = 18π yd² + 72π yd² = 90π yd²

Note: Please check your source. L x W + 2pi ·r ^2 is incorrect.

5 0

4 years ago

PLEASE HELP!!

PSYCHO15rus [73]

Answer:

The bird is approximately 9 ft high up in the tree

Explanation:

The required diagram is shown in the attached image

Note that the tree, the cat and the ground form a right-angled triangle

Therefore, we can apply special trigonometric functions

These functions are as follows:

$sin(\alpha)=\frac{opposite}{hypotenuse} \\ \\ cos(\alpha)=\frac{adjacent}{hypotenuse} \\ \\tan(\alpha)=\frac{opposite}{adjacent}$

Now, taking a look at our diagram, we can note the following:

α = 25°

The opposite side is the required height (x)

The adjacent side is the distance between the cat and the tree = 20 ft

Therefore, we can use the tan function

This is done as follows:

$tan(\alpha)=\frac{opposite}{adjacent}\\ \\ tan(25)=\frac{x}{20}\\ \\x=20tan(25) = 9. 32 ft$ which is 9 ft approximated to the nearest ft

Hope this helps :)

5 0

3 years ago

Michael has 2 meters of yarn. she needs to cut the yarn into 10 equal pieces. how long will each price of yarn be? A.) 20 cm B.)

Karolina [17]

2 meters is equal to 200 centimeters
Divide 200 by 10
200/10 = 20cm

Each piece will be 20 cm long
So your answer is A

3 0

3 years ago

Does anyone know this?

shusha [124]

The answer will be t=2.50g I think

8 0

3 years ago

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A population numbers 770 organisms initially and increases by 4.8% each year.

lana [24]

Answer:

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3 years ago