Mathematics Practice Test – Plane and Circle Geometry

The sum of the interior angles of a regular polygon is 1800^o. How many sides has the polygon?

A. 16    B. 12    C. 10    D. 8

In the diagrams, |XZ| = |MN|, |ZY| = |MO| and |XY| = |NO|. Which of the following statement is true?

A. ΔZYX ≡ ΔOMN     B. ΔYZX ≡ ΔNOM     C. ΔZXY ≡ ΔMON     D. ΔXYZ ≡ ΔNOM

If O is the centre of the circle, ∠POS equals ______

A. 70^o    B. 75^o     C. 105^o    D. 150^o

In the diagram, VX is a tangent to the circle UYW at W. If WY//UV, angle UWY = 46^o, find angle UVW.

A. 51^o    B. 49^o    C. 39^o    D. 44^o

In ΔXYZ,  |XY| = 8 cm, |YZ| =10cm and |XZ| = 6 cm.

Which of these relations is true?

A. |XY| + |YZ| = |XZ|     B. |XY| - |YZ| = |XZ|     C. |XZ|² = |YZ|² - |XY|²      D. |YZ|² = |XZ|² - |XY|²