Intersecting Chords Statements

CMAT 2024 · Quantitative Techniques & Data Interpretation · Medium · Geometry

Given below are two statements : Statement I: If two chords XY and ZT of a circle intersects internally at point P, then PX - PY = PZ - PT Statement II: If two chords XY and ZT of a circle intersect internally at point P, then PXZ and PTY are similar triangles. In the light of the above statements, choose the correct answer from the options given below:

  1. A.

    Both Statement I and Statement II are true

  2. B.

    Both Statement I and Statement II are false

  3. C.

    Statement I is true but Statement II is false

  4. D.

    Statement I is false but Statement II is true

Answer

D

Explanation

Statement I is false because the intersecting chords theorem states that PX⋅PY=PZ⋅PTPX \cdot PY = PZ \cdot PT, not subtraction. Statement II is true because ∠XPZ=∠TPY\angle XPZ = \angle TPY (vertically opposite) and ∠PXZ=∠PTY\angle PXZ = \angle PTY (angles in the same segment), making △PXZ∼△PTY\triangle PXZ \sim \triangle PTY by AA similarity criterion.

Related Geometry questions

Practise this under exam conditions

Sign in to solve it with a live timer, the on-screen CAT calculator, and streak and accuracy tracking across every question you attempt.

Solve in the workspace