In the diagram, MNR is a tangent to the circle centre O at N and ∠NOS = 108°. Find ∠OSN
In the diagram, triangle MNR is inscribed in circle MNR, and line PQ is a straight line. ∠MRN = 41 and = 141, find ∠QNR
The straight line y = mx - 4 passes through the point(-4,16). Calculate the gradient of the line
Calculate, correct to three significant figures, the length AB in the diagram above.