A regular polygon of (2k + 1) sides has 140° as the size of each interior angle. Find k
PQRS is a rhombus. If PR\(^2\) + QS\(^2\) = kPQ\(^2\), determine k.
In XYZ, y = z = 30° and XZ = 3cm. Find YZ
if x : y = 5 : 12 and z = 52cm, find the perimeter of the triangle.
