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konstantin123 [22]
3 years ago
9

Find the perimeter of this quadrilateral

Mathematics
1 answer:
Paha777 [63]3 years ago
6 0
\bf (x^2-6)~~+~~(2x+5)~~+~~(x^2-3x)~~+~~(4x^2+2x)
\\\\\\
6x^2+4x-3x-6+5\implies 6x^2+x-1
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(9,12)

Step-by-step explanation:

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Can someone explain this? :)
Alchen [17]

I'll do part (a) to get you started.

The angle 'a' pairs up with the 123 degree angle as a corresponding angle pair. Due to the parallel lines, the corresponding angles are congruent. Therefore a = 123.

We also see that b = 123 as well since a = b (they are vertical angles).

Notice how angle c is adjacent to the 123 degree angle. These two angles form a straight line, so they must add to 180 degrees.

c+123 = 180

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To summarize, we have these three angles

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Step-by-step explanation:

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Step-by-step explanation:

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To check, you can plug the coordinates into the equation.

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