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Metafaniel · Answer 1 · 2019-04-03T15:51:34+0000

The triangle is a 45-45-90 triangle so the legs are equal to the hypotenuse divided by sqrt(2). That means the legs are 12*sqrt(2). Area of a triangle is bh/2.

12sqrt2 * 12sqrt2 = 288
288/2 = 144

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