Help me out please and thank you

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Explanation:

We're given the height in relation to base BC, so we need to find the length of this base. This is the same as finding the distance from B to C.

Turn to the distance formula

Coincidentally, the base and height are the same. This won't always be the case.

Now we can find the area of the triangle

The area of the triangle is 1 square unit.

See diagram below.