Foundation November 2021 Paper 3 Q19
19 This diagram shows two squares.
Work out the area of the square shown shaded in the diagram. (4)
| Answer | Mark | Mark scheme |
|---|---|---|
| 34 cm² | P1 | for finding one area eg \(8 \times 8\ (= 64)\) or \(0.5 \times 3 \times 5\ (= 7.5)\) or for first stage in working with Pythagoras eg sight of \(3^2 + 5^2\) or \(9 + 25\) |
| P1 | for a complete process to find the area eg \(\text{``}64\text{''} - 4 \times \text{``}7.5\text{''}\ (= 34)\) or for full use of Pythagoras eg \(\sqrt{3^2 + 5^2}\) or \(\sqrt{34}\) or 5.83… | |
| A1 | for an answer in the range 33.6 to 34 | |
| B1 | (indep) for cm² |
Additional guidance
Any figure used must come from a correct process
Can be awarded with incorrect units stated
Can be awarded with an incorrect or absent numerical answer