The diagonal of a rhombus are 12cm and 5cm. calculate its perimeter

In the diagram, △XYZ is produced to T. if |XY| = |ZY| and ∠XYT = 40°, find ∠XZT

A solid brass cube is melted and recast as a solid cone of height h and base radius r. If the height of the cube is h, find r in terms of h.

Which of the following is not an exterior angle of a regular polygon?

From a point T, a man moves 12km due west and then moves 12km due south to another point Q. Calculate the bearing of T from Q.