Specialist2025 Exam 2 Section A · Q19CAS active1 mark

Area of triangle formed by plane's axis intercepts

The plane with equation $x + y + z = a$ , where $a \in R$ , intersects the coordinate axes at three points that form the vertices of a triangle.

The area of this triangle is given by

1 mark

\frac{a^2\sqrt{3}}{4}

\frac{a^2\sqrt{3}}{2}

\frac{a^2}{4}

a^2\sqrt{3}

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