| Exam Board | WJEC |
|---|---|
| Module | Unit 1 (Unit 1) |
| Year | 2024 |
| Session | June |
| Marks | 4 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Sine and Cosine Rules |
| Type | Triangle area calculation |
| Difficulty | Moderate -0.5 This is a straightforward application of Heron's formula (or cosine rule followed by area formula) requiring only standard technique with no problem-solving insight. The 4 marks reflect computational steps rather than conceptual difficulty, making it slightly easier than average but not trivial due to the arithmetic involved. |
| Spec | 1.05c Area of triangle: using 1/2 ab sin(C) |
A triangle $ABC$ has sides $AB = 6$cm, $BC = 11$cm and $AC = 13$cm. Calculate the area of the triangle. [4]
\hfill \mbox{\textit{WJEC Unit 1 2024 Q5 [4]}}