Question

area of following trapezium​

Answer 1

h = 3 cm

sides = 7 cm and 9 cm

Area of trapezium =

$\frac{1}{2} \times sum \: of \: parallel \: side \: \times h \\ \\ = \frac{1}{2} \times (9 + 7) \times 3 \\ \\ = \frac{1}{2} \times 16 \times 3 \\ \\ = 8 \times 3 \\ \\ = 24 \: {cm}^{2}$
Hope it helps.

Answer 2

Area of trapezium = 1/2 (a+b) h

${(7 + 9) \times 3 } \div 2 \\ 16 \times 3 \div 2 \\ 48 \div 2 \\ 24$

24cm sq