Geometry Always/Sometimes/Never Quiz

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Questions and Answers

Is a square a rhombus?

False (B)

Do the diagonals of a parallelogram bisect the angles of the parallelogram?

False (B)

Is a quadrilateral with one pair of sides congruent and one pair of sides parallel a parallelogram?

False (B)

Are the diagonals of a rhombus congruent?

<p>False (B)</p> Signup and view all the answers

Does a rectangle have consecutive congruent sides?

<p>False (B)</p> Signup and view all the answers

Does a rectangle have perpendicular diagonals?

<p>False (B)</p> Signup and view all the answers

Do the diagonals of a rhombus bisect each other?

<p>False (B)</p> Signup and view all the answers

Are the diagonals of a parallelogram perpendicular bisectors of each other?

<p>False (B)</p> Signup and view all the answers

Do perpendicular lines lie in the same plane?

<p>False (B)</p> Signup and view all the answers

Are two lines perpendicular if and only if they form congruent adjacent angles?

<p>False (B)</p> Signup and view all the answers

If a pair of vertical angles are supplementary, then the lines forming the angles are perpendicular?

<p>False (B)</p> Signup and view all the answers

If there are two points, then there exists exactly one line?

<p>False (B)</p> Signup and view all the answers

Is a right triangle also equilateral?

<p>False (B)</p> Signup and view all the answers

If a triangle has an obtuse angle, then its orthocenter is outside the triangle?

<p>False (B)</p> Signup and view all the answers

In a rectangle, are the perpendicular bisectors of the two diagonals perpendicular?

<p>False (B)</p> Signup and view all the answers

If an equilateral triangle shares two sides with a parallelogram, then it is a rhombus?

<p>False (B)</p> Signup and view all the answers

Is the base of an isosceles triangle greater than the sum of its two legs?

<p>False (B)</p> Signup and view all the answers

Is the exterior angle of a regular polygon less than an interior angle?

<p>False (B)</p> Signup and view all the answers

If two angles are supplementary to the same angle, then they are supplementary to each other?

<p>False (B)</p> Signup and view all the answers

If parallel lines are cut by a transversal, then alternate interior angles are not congruent?

<p>False (B)</p> Signup and view all the answers

Passing through a point not on line l, there exists exactly one line perpendicular to line l?

<p>False (B)</p> Signup and view all the answers

Passing through a point not on line l, there exists exactly one line parallel to line l?

<p>False (B)</p> Signup and view all the answers

Is the converse of a theorem true?

<p>False (B)</p> Signup and view all the answers

Can a theorem be proven?

<p>False (B)</p> Signup and view all the answers

Are two intersecting lines coplanar?

<p>False (B)</p> Signup and view all the answers

Do supplementary angles form a linear pair?

<p>False (B)</p> Signup and view all the answers

If line 1 is in plane X and line 2 is in plane Y and plane X is parallel to plane Y, then line 1 is parallel to line 2?

<p>False (B)</p> Signup and view all the answers

If points M and N are on line PQ and line PM is congruent to line NQ, then line PN is congruent to line MQ?

<p>False (B)</p> Signup and view all the answers

Is a rhombus a square?

<p>False (B)</p> Signup and view all the answers

Is a parallelogram a rectangle?

<p>False (B)</p> Signup and view all the answers

Is a rectangle a parallelogram?

<p>False (B)</p> Signup and view all the answers

Is a trapezoid a quadrilateral?

<p>False (B)</p> Signup and view all the answers

Is a quadrilateral a trapezoid?

<p>False (B)</p> Signup and view all the answers

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Study Notes

Always Statements

  • A square is classified as a rhombus, indicating all squares meet the properties of rhombuses.
  • Perpendicular lines exist within the same plane, establishing a consistent geometric relationship.
  • Two lines are defined as perpendicular if they form congruent adjacent angles, a key property in triangle and angle relationships.
  • There is exactly one line perpendicular to a given line, passing through any external point, reinforcing concepts of parallel and perpendicular lines.
  • A theorem has a definitive proof, demonstrating its validity within the mathematical framework.
  • Two intersecting lines are always coplanar, confirming that they reside in the same plane.
  • If points M and N are located on line PQ, and line segments PM and NQ are congruent, then line segments PN and MQ must also be congruent.

Sometimes Statements

  • The diagonals of a parallelogram may bisect the angles, but this is not universally true for all parallelograms.
  • A quadrilateral with one pair of congruent sides and one pair of parallel sides is sometimes classified as a parallelogram based on additional properties.
  • The diagonals of a rhombus are sometimes congruent, not a defining characteristic of all rhombuses.
  • A rectangle can have consecutive congruent sides, but not all rectangles will exhibit this property.
  • The diagonals of a parallelogram being perpendicular bisectors is conditional and not an absolute truth.
  • The exterior angle of a regular polygon can sometimes be less than the interior angle, depending on the configuration of the polygon.
  • If two angles are supplementary to the same angle, they may or may not be supplementary to each other, depending on the specific angles involved.
  • The converse of a theorem may occasionally hold true, but it is not guaranteed for all theorems.
  • A rhombus can be a square, but not all rhombuses fulfill the additional criteria necessary for squareness.
  • A parallelogram may also be a rectangle, depending on the angles being right angles.
  • Supplementary angles can form a linear pair, but this is not a requirement for all supplementary angle pairs.

Never Statements

  • A right triangle can never be equilateral, as equilateral triangles have all sides equal and angles of 60 degrees.
  • The base of an isosceles triangle is never greater than the sum of its two legs, consistent with triangle inequality principles.
  • If parallel lines are intersected by a transversal, the alternate interior angles will always be congruent, so they cannot be non-congruent.

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