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Otrada [13]
4 years ago
15

Please help me Thank u

Mathematics
1 answer:
SCORPION-xisa [38]4 years ago
8 0

Answer:

Step-by-step explanation:

Fist let's have a look :

  • (AB) is parallel  with (CD) and there is a line crossing them both.

Now the first question : What is the size x ?

  • We notice that x and 53° are vertically opposite so they are corresponding angles
  • so the size of x is 53°

The second question : what is the size of y ?

  • We notice that y and 53° are alternate angles
  • so they are corresponding angles with same size
  • y=53°

The trick is to khow the situation where we have  corresponding angles

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The perimeter of the triangle is 350 units. Find the measure of each side (label your answers).
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Answer:

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Step-by-step explanation:

You would first make an equation with what you know:

x + 45 + x + 25 + x + 40 = 350.

Now, you would simplify and add like terms.

3x + 110 = 350

Now, you would subtract 110 from both sides.

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Now, you would divide both sides by 3.

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Now that you know what x is, simply plug it in to the respective equations for all three sides.

x + 45 would become 80 + 45, and add up to 125.

x + 25 would become 80 + 25, and add up to 105.

x + 40 would become 80 + 40, and add up to 120.

To check your work, you would now add the three totals.

125 + 105 + 120 = 350.

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