solve:::

A=1/2(a+b)h

I don't know how this could be solved any further, but this seems like the formula for the area of a trapezoid.

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To solve for the value of A in the formula A = (1/2)(a + b)h, you need to have the values of a, b, and h. The formula represents the area of a trapezoid, where a and b are the lengths of the parallel bases, and h is the height.

Here are the steps to solve for A:

1. Gather the values of a, b, and h from the problem or given information.

2. Substitute the known values into the formula.

A = (1/2)(a + b)h

3. Simplify the expression inside the parentheses.

A = (a + b)h / 2

4. Multiply the sum of a and b by h.

A = (ah + bh) / 2

5. Distribute the division by 2 to both terms inside the parentheses.

A = ah/2 + bh/2

6. The final step is to add the terms inside the parentheses.

A = (ah + bh) / 2

After completing these steps, you have the value of A, which represents the area of the trapezoid.