Given that the measure of Angle DAC = 40 degrees and the measure of Angle ABC = 120 degrees, find the indicated measures for each question. Find the value of x and y.

x = 120°, y = 20°

Step-by-step explanation:

Let's recall that the four interior angles in any rhombus must have a sum of 360 degrees.  In addition, the opposite interior angles must be equivalent, and the adjacent angles have a sum of 180 degrees.  

∠ ABC and ∠ ADC are opposite interior angles, so they must have equivalent measurements, therefore x = 120 degrees.

To find the value of y, we use this equation because the interior angles of the Δ ADC add up to 180:

y = 180 - 120 - 40

y = 180 - 160

y = 20 degrees ⇒ z = 40 degrees

54

step-by-step explanation:

answer: for each 3 girls there is 2 boys . 3: 2

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