Answer:
Area = 56mm²
Step-by-step explanation:
Area of a trapezium/trapezoid
[tex] = \frac{1}{2} \times h \times (a + b)[/tex]
[tex] = \frac{1}{ 2} \times 7 \times (4 + 12)[/tex]
[tex] = \frac{7}{2} \times16[/tex]
[tex] = 7 \times 8[/tex]
[tex] = 56[/tex]
