Find the area of the trapezium above.
Area of trapezium = 12(a+b)×h\frac{1}{2} (a + b) \times h21(a+b)×h
= 12(7+13)×6\frac{1}{2} (7 + 13) \times 621(7+13)×6
= 60cm260 \mathrm{cm}^{2}60cm2