LCHL SEC 2019 P1 Q9


a) i)  perimeter of irregular shape

a) ii) change of subject of equation with Pi

b) i) and ii) table and a graph of liner function express in fraction form, calculating slop

c) i) changing of formula for the area of irregular shape into function

c) ii) finding derivate of quadratic function express in fraction form

c) iii) calculating maximum place of quadratic function, interpretation of calculation