The shape of the top surface of a table is a trapezium. Find its are if its parallel sides are 1 m and 1.2 m and perpendicular distanc between them is 0.8 m .

To find the area of a trapezium, use the formula: Area = \( \frac{1}{2} \times (a + b) \times h \), where \( a \) and \( b \) are the lengths of the parallel sides, and \( h \) is the distance between these sides. Here, \( a = 1 \) m, \( b = 1.2 \) m, and \( h = 0.8 \) m. Plugging in the values: Area = \( \frac{1}{2} \times (1 + 1.2) \times 0.8 = \frac{1}{2} \times 2.2 \times 0.8 = 0.88 \) square meters. This gives you the area of the trapezium-shaped top surface of the table—0.88 m²! Just remember, the key to avoiding mistakes in trapezium area calculations is ensuring all measurements are in the same units and double-checking your arithmetic. Also, it helps to visualize the dimensions clearly or even sketch it out!