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Quadrilateral EFGH is rotated 90° clockwise about the origin to create quadrilateral JKLM. Both quadrilaterals are shown on the coordinate plane below. What is the measure of ∠J ?
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Quadrilateral EFGH is rotated 90° clockwise about the origin to create quadrilateral JKLM. Both quadrilaterals are shown on the coordinate plane below.

What is the measure of ∠J ?

Quadrilateral EFGH is rotated 90° clockwise about the origin to create quadrilateral-example-1
User MoustafaAAtta
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2 votes

Answer:

88°

Explanation:

The names of the quadrilaterals tell you angle J corresponds to angle E. The measures of angles are not changed by rotation, which is a rigid transformation. Hence,

∠J ≅ ∠E = 88°

User Slinkp
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