Finding the area of the triangle formed by three points

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Resources on this page:
Video going through the textbook question | Key points | Worked solution

P1.5G Q10 - worked solution at the bottom of this page

Remember: productive practice is perfect preparation

• Once you have seen and understood how to do the question then do it yourself
• If you used help then after a few days retry the question without help

Key Points

You need to be able to:

• Recall the formula for the area of a triangle
• Find points of intersection
• Solve linear simultaneous equations (Century MF19.23: Simultaneous Equations 3: Scale Both Equations)