IB skill practice

Use vector product for area

Use cross-product magnitude to calculate parallelogram or triangle area.

Paper 1, Paper 2 5 marks Difficulty 3

Use vector product for area - official syllabus scenario

A environmental sensor triangle is formed by two vectors with \(|\mathbf a\times\mathbf b|=20\). Find the triangle area. Enter the requested value and choose the interpretation that matches the result.

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.