If ΔABC is similar to ΔDEF such that BC = 3 cm, EF = 4 cm and area of ΔABC=54 cm2. Determine the area of ΔDEF. [4 MARKS]
If ΔABC∼ΔDEF such that area of ΔABC is 9 cm2 and the area of ΔDEF is 16 cm2 and BC = 2.1 cm. Find the length of EF. [2 MARKS]