This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.

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Answer
\frac{1}{2}(a+b)h $$
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The figure is a trapezium. The formula for the area of a trapezium is given by: where and are the lengths of the parallel sides, and is the perpendicular height between them.
Step 1: Identify the parallel sides and the height. From the figure, the top side is cm and the bottom side is cm. These are the parallel sides. The dashed line represents the height, . We need to find the value of .
Step 2: Determine
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Welcome back millicentodongo023 — missed you this week. The figure is a trapezium.
This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.