READING DIAGRAMS In Exercises 17—22, use the diagram at the right. 17. Name the intersection Of and m. 18. Name the intersection Of plane EFG and plane PGS. 19. Name the intersection Of plane PQS and plane HGS. Are points P, Q, and F collinear? Are they coplanar? 20. Are points P and G collinear? Are they coplanar? 21. 22. Name three planes that intersect at point E. IR

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Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c