Factorize completely $32{{x}^{2}}y-48{{x}^{3}}{{y}^{3}}$

The volume of a cuboids is 54cm³, if the length, width, and height of the cuboid are in the  ratio 2: 1:1. respectively. Find its total surface area

The diagram is a polygon. Find the largest angle of its interiorAngles 

In the diagram, $\left| SR \right|=\left| QR \right|,\text{ }\angle SRP={{65}^{{}^\circ }},$$\text{and }\angle RPQ={{48}^{{}^\circ }}$ find $\angle PRQ$

If x and y are variable and k is a constant , which of the following describes an inverse relationship between x and y

The diagram is a circle of radius $\left| OQ \right|=4cm$ . $\overline{TR}$ is a tangent to the circle at R. If  $\angle TPO={{120}^{{}^\circ }}$ find $\left| PQ \right|$ 

The diagram is a circle with centre O. PRST are points on the circle. Find the value of $\angle PRS$

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