Area of a trapezium
Area of triangle (1) \( = \frac{1}{2}bh\)
\(= \frac{1}{2} \times 2 \times 7\)
\(= \frac{1}{2} \times 14\)
\(= 7c{m^2}\)
Area of rectangle (2) \(= l \times b\)
\(= 5 \times 7\)
\(= 35{cm^2}\)
Area of triangle (3) \( = \frac{1}{2}bh\)
\(= \frac{1}{2} \times 9 \times 7\)
\(= \frac{1}{2} \times 63\)
\(= 31.5c{m^2}\)
Total area\( = 7 + 35 + 31.5 = 73.5c{m^2}\)
