This is the thinkboard for Week 9. It is a similar question to last weeks one. We had to find the area and the perimeter of a triangle whos base is 25 cm and sides are 15cm. We are given the dimensions and the shape and from there, we do the rest! I completed this with my classmate Rave. We solved the question and there is our working out and a diagram of our working out in the thinkboard. There is also 10 other similar questions and a word problem.