question_answer 1)

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

Answer:

                Area of the top surface of the table                 \[=\frac{1}{2}\,h\,(a+b)\] \[=\frac{1}{2}\,\times 0.8\,\times (1.2+1)\] \[=0.88\,{{m}^{2}}\]