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galben [10]
2 years ago
5

A square has an area of 369.01m squared number.work out the perimeter of the square.

Mathematics
1 answer:
Lina20 [59]2 years ago
5 0

Answer:

76.84 m is the perimeter

Step-by-step explanation:

First take the square root of the area

   √ 369.01 = 19.21  

Formula for  perimeter of square

         P = 4a

    a = 19.21

So  

        P = 4(19.21)

        P = 76.84 m

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3 packages of cups and 4 packages of napkins assuming that all 60 shows up 3×24=72 4×18=72 plenty with Xtra
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3 years ago
Triangle X Y Z is cut by line segment C D. Line segment C D goes from side X Y to side Y Z. The length of C D is 15, the length
Marizza181 [45]

The length of DZ is 4 units ⇒ 3rd answer

Step-by-step explanation:

Triangle X Y Z is cut by line segment C D, where

  • C lies on side XY and D lies on the side YZ
  • The length of C D is 15
  • The length of X Z is 18
  • The length of C Y is 25
  • The length of Y D is 20
  • C D and X Z are parallel
  • CX = 5 units

We need to find the length of DZ

In Δ XYZ

∵ C ∈ XY and D ∈ YZ

∵ CD // XZ

∴ m∠YCD = m∠YXZ ⇒ alternate angles

∴ m∠YDC = m∠YZX ⇒ alternate angles

In Δs YCD and YXZ

∵ m∠YCD = m∠YXZ

∵ m∠YDC = m∠YZX

∵ ∠Y is a common angle

∴ Δ YCD is similar to Δ YXZ by AAA postulate

- There is a constant ratio between their corresponding sides

∴ \frac{YC}{YX}=\frac{CD}{XZ}=\frac{YD}{YZ}

∵ YC = 25 units

∵ CX = 5 units

∵ YX = YC + CX

∴ YX = 25 + 5 = 30 units

∵ YD = 20 units

∵ YZ = YD + DZ

∴ YZ = 20 + DZ

Let us use the ratio of the corresponding side

∵ \frac{YC}{YX}=\frac{YD}{YZ}

∴ \frac{25}{30}=\frac{20}{20+DZ}

- Simplify \frac{25}{30} by dividing up and down by 5

∵ \frac{25}{30}=\frac{5}{6}

∴ \frac{5}{6}=\frac{20}{20+DZ}

- By using cross multiplication

∴ 5(20 + DZ) = 6(20)

∴ 100 + 5 DZ = 120

- Subtract 100 from both sides

∴ 5 DZ = 20

- Divide both sides by 5

∴ DZ = 4 units

The length of DZ is 4 units

Learn more:

You can learn more about triangles in brainly.com/question/3202836

#LearnwithBrainly

8 0
3 years ago
you have $90 to buy balloon for your friend party.the balloons cost $18.what are the possible numbers of balloons that you can b
tangare [24]

Answer:

The answer would be 5.

Step-by-step explanation:

If you take away 18 from 90 would be 72.

72 - 18 =54

54 - 18 =36

36 - 18 =18

18 - 18 =0

If you count that would equal 5 .

Hope this helps .

7 0
3 years ago
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Goryan [66]

Answer:

101 students

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2 years ago
Question 16 of 25
kondor19780726 [428]

Answer:

An acute angle is greater than 0 and less than 90

Step-by-step explanation:

An acute angle is greater than 0 and less than 90

A right angle is 90 degrees

An obtuse angle is greater than 90 and less than 180

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3 years ago
Read 2 more answers
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