2. The radii, OP and OQ of two concentric circles are 7cm and 5•6cm respectively. If angle POQ=120, find the perimeter of
the figure (Use π=22\\7)​

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )