A piece of fabric measures 36 by 42 inches. A triangular scarf with a height of 25 inches and base of 30 inches is cut from the fabric. How much is left over?

A) 762in^2
B) 381in^2
C) 1137in^2
D)568.5in^2

36 * 42 = 1512 square inches

(25 * 30) / 2 = 375 square inches

Subtract the area of the scarf from the area of the piece of fabric.

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To calculate how much fabric is left over, we need to calculate the area of the triangular scarf and subtract it from the total area of the fabric.

The area of a triangle can be calculated using the formula: A = (1/2) * base * height.

In this case, the base of the triangular scarf is 30 inches and the height is 25 inches. Plugging these values into the formula, we get:

A = (1/2) * 30 * 25
A = 375 square inches

Now, we need to subtract this area from the total area of the fabric.

The total area of the fabric is given by multiplying the length and width of the fabric:

Total area = 36 inches * 42 inches
Total area = 1512 square inches

Finally, we subtract the area of the triangular scarf from the total area of the fabric to find how much fabric is left over:

Fabric left over = Total area - Area of triangular scarf
Fabric left over = 1512 square inches - 375 square inches
Fabric left over = 1137 square inches

Therefore, the correct answer is C) 1137in^2.