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Triangle JKL, with vertices J(2,3), K(7,4), and L(3,9), is drawn inside a rectangle, as

shown below.

What is the area, in square units, of triangle JKL?

Triangle JKL, with vertices J(2,3), K(7,4), and L(3,9), is drawn inside a rectangle-example-1
User Emmitt
by
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1 Answer

4 votes

Answer:

14.5

Explanation:

The area of the rectangle is
(5)(6)=30.

The areas of the three right triangles in the rectangle but not in
\triangle JKL are 2.5, 10, and 3.


\implies [JKL]=30-2.5-10-3=14.5

User Artem Kirillov
by
7.8k points

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