Foundation November 2021 Paper 3 Q6
6 The diagram shows how a rhombus is made by joining two equilateral triangles.
Not to scale
(a) Find the size of each interior angle of the rhombus. [1]
(b) The same rhombus can be made by joining two copies of an isosceles triangle.
Find the size of each angle of the isosceles triangle. [2]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 60, 120, 60, 120 | 1 | Accept in any order or only on diagram Must be 120 and not 60|60 or 60+60 | |
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 30, 120, 30 | 2 | M1 for diagram with longer diagonal drawn only | May be on original drawing If diagram redrawn then diagonal must join “other two” vertices |