样本一:
砍伐林木申请书
_____乡(镇)_____村_____组:
我叫_____,身份证号码:__________________,家庭住址:__________________,联系电话:______________。
因 ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________d(\a = 1. The formula for the area of a trapezoid is $A = \frac{1}{2} h (b_1 + b_2)$, where $h$ is the height and $b_1$ and $b_2$ are the lengths of the two parallel sides. Find the height of a trapezoid if $A = 16$ square inches, $b_1 = 3$ inches, and $b_2 = 5$ inches.
We are given the formula for the area of a trapezoid, $A = \frac{1}{2}h(b_1 + b_2)$, where $A$ is the area, $h$ is the height, and $b_1$ and $b_2$ are the lengths of the two parallel sides.
We are given that $A = 16$ square inches, $b_1 = 3$ inches, and $b_2 = 5$ inches.
We need to find the height, $h$, of the trapezoid.
Plugging in the given values into the formula, we have:
$16 = \frac{1}{2} h (3 + 5)$
Simplifying the equation, we get:
$16 = \frac{1}{2} h (8)$
$16 = 4h$
To find $h$, we can divide both sides of the equation by 4:
$\frac{16}{4} = \frac{4h}{4}$
$4 = h$
Therefore, the height of the trapezoid is $h = 4$ inches.
Final Answer: The final answer is $\boxed{4}$
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