Higher June 2024 Paper 2 Q1
1 \(ABC\) is a right-angled triangle.
Work out the length of \(CB\).
Give your answer correct to 3 significant figures. (2)
| Answer | Mark | Mark scheme |
|---|---|---|
| 16.2 | M1 | for a correct first step to find \(BC\), eg \(19^2 = 10^2 + BC^2\) or \(19^2 - 10^2\ (= 261)\) or \(\sqrt{19^2 - 10^2}\) or \(\sqrt{261}\) or \(3\sqrt{29}\) |
| A1 | for answer in the range 16.1 to 16.2 |
Additional guidance
Can use alternative letter for \(BC\) provided intention is clear
If using an alternative method using trigonometry must have \(BC\) as the only unknown
ISW incorrect rounding if answer given in range