out to gain full marks full working out. Show working side length ratio area ratio volume ratio a²b 1. Two trangles ABC and DEF are similar triangles. (1 marks each) D a. What is the length scale factor for the two similar triangles? A A 7.5 b. Find the size of the length marked x. c. What is the area scale factor of the two triangles? B 3CE 4.5 F d. If the area of trangle ABC is 6 cm², what is the area of triangle DEF? odinders. The volume of the bigger cylinder is 785 cm (1 marks each)​