Foundation June 2022 Paper 1 Q4
4 In this isosceles triangle,
\(AB = AC\)
Not drawn accurately
The perimeter of the triangle is 22 cm
Work out the length of \(AB\). [3 marks]
| Answer | Mark | Comments |
|---|---|---|
| \(22 - 4\) or 18 or \(22 \div 2\) or 11 or \(4 \div 2\) or 2 | M1 | oe |
| their 18 \(\div\) 2 or their 11 \(-\) their 2 | M1dep | oe |
| 9 | A1 | may be seen on diagram SC1 20 or 14 |
Additional guidance
| Ignore units or incorrect statements eg the lines are parallel | |
| Condone poor notation eg \(22 - 4 \div 2 = 9\) | M1M1A1 |
| Embedded answer of 9 | M1M1A0 |