New 9-1 Maths GCSE Problem Solving 8 - Geometry Question - Grades 5-9

[Problem Solving 8 in the Series ( check out 1-7)]
Students should learn/discover
1 . Learn Area of Trapezium
2. Find lengths using Similar Shapes

Then use these skills A-B to do the PROBLEM SOLVING Questions on Geometry

A. a student sheet has no formulae/knowledge as they have to discover these themselves....(starting from a blank canvass- or prior knowledge)
They may use textbooks, on-line resources , their exercise books etc...

B. A COMBINED sheet which acts as a teacher Guidance/Answer sheets
The teacher's role is of a prompter- the student does all the work....It can be a one-one or paired or group work and can be adapted to do other things...