How can we find $A,$ the area of the colored triangle, when we're only told two lengths in the figure?

Keep reading to see *one* way we can do this, or skip straight to today's challenge if you feel ready for a tougher problem.

How can we find $A,$ the area of the colored triangle, when we're only told two lengths in the figure?

Keep reading to see *one* way we can do this, or skip straight to today's challenge if you feel ready for a tougher problem.

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