In the diagram, PQR and QTS are straight lines.
It is given that , calculate the length, in cm, of RS.
In the diagram, PQR is a straight line.
It is given that
, hence sin yo =
In diagram below, ABE and DBC are two right-angled triangles ABC and DEB are straight lines.
(a) Find the value of tan xo.
(b) Calculate the length, in cm, of DE.