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pashok25 [27]
3 years ago
11

Quadrilateral ABCD is a parallelogram. Determine the measure of Angle A

Mathematics
1 answer:
Lunna [17]3 years ago
3 0

Answer:

\huge\boxed{\text{(A)}\  96 \textdegree}

Step-by-step explanation:

<em>A parallelogram has two pairs of identical angles.</em>

The identical angles will be <u>directly opposite from each other</u>.

This means that:

  • Angle C = Angle A
  • Angle D = Angle B

Therefore, we can say that Angle A is 3x degrees and Angle B is x+52 degrees.

It's also important to note that all angles in a quadrilateral add up to 360°.

Since we know the measure of each angle, we can add up the expressions for each and find x.

3x + 3x + (x+52) + (x+52) = 360

Let's simplify this equation.

  • 6x+(x+52)+(x+52)=360
  • 8x+104=360
  • 8x=256
  • x=32  

Now that we know the value of x, let's use it to find the measure of Angle A.

We already proved earlier that Angle C is equivalent to Angle A. Since we know the expression for Angle C (3x) it'll be the same for angle A.

3(32)=96

So A is 96°

Hope this helped!

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