Foundation June 2023 Paper 1 Q7
7 The diagram shows a rectangle measuring 10 cm by 3 cm.
Diagram NOT accurately drawn
A shape is made by placing 3 of these rectangles together as shown in the diagram.
Work out the perimeter of the shape.
(3)
| Scheme | Marks |
|---|---|
| \(10 - 3\) (= 7) (could be on diagram) or \(10 + 3 + 10 + 3\) (= 26) oe or \((10 + 3 + 10 + 3) \times 3\) (= 78) oe or \(6 \times 10 + 4 \times 3\) (= 72) oe or \(4 \times 10 + 4 \times 3\) (= 52) oe | M1 |
| eg \(3 + 10 + 3 + 10 + 3 + 10 + 3 + \text{``}{7}\text{''} + 10 + \text{``}{7}\text{''}\) oe or \(4 \times 10 + 4 \times 3 + 2 \times \text{``}{7}\text{''}\) oe or \(\text{``}{78}\text{''} - (4 \times 3)\) oe or \(\text{``}{72}\text{''} - (2 \times 3)\) oe or \(\text{``}{52}\text{''} + (2 \times \text{``}{7}\text{''})\) oe | M1 |
| Correct answer scores full marks (unless from obvious incorrect working) Answer: 66 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for \(10 - 3\) (= 7) (could be on diagram)
or for finding the perimeter of one rectangle
or for finding the perimeter of 3 rectangles
or for finding the perimeter including the internal sides
or for finding the perimeter excluding the two lengths of 7
M1: for a fully correct method to find the perimeter of the shape, with at most one error (which could be one length omitted or an extra length added)