Final answer:
In a right triangle, the area is given by 1/2*Base*Height. In this case, Base is 9 units, and Height is 11 units, so the area would be 1/2 * (9) * (11). None of the options provided in the question are correct.
Step-by-step explanation:
The area of a right triangle can be calculated using the formula, Area = 1/2 * Base * Height. In your case, the base, RQ, is 9 units and the height, QS, is 11 units. As we do not need the hypotenuse or the angle to calculate the area for a right triangle, we can ignore RS and angle R in this case.
So, the accurate expression to calculate the area of triangle QRS is 1/2 * (9) * (11). Among the given options, none of them is accurate as all of them unnecessarily consider either the hypotenuse or the angle, which are not required in the calculation of the area of a right triangle.
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