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Sagot :

purplestar006

Answer:

diagonals bisect each other equally in rectangle

then use the concept of vertically opposite angles

meamajewski

Answer:

x = 120

Step-by-step explanation:

Since the lines are intersecting the the rectangle from the corner we know the angles are all congruent in some way.

now:                      ( look at image for labels)

angle a is also 60 because both side are equivilent

since all triangles are 180 degrees we can find the measure of angle b

60 + 60 + b = 180

angle b = 60

and since we know two angles created by intersecting lines are supplementary angles the sums add up to 180 so

60 + x = 180

x = 120

View image meamajewski
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