the answer is 366 cm^2
work :
you can separate this figure into two regular figures: a rectangle and a right triangle
the area of the rectangle
[tex]14 \times 21 = 294[/tex]
the area of the right triangle :
[tex](9 \times 16) \div 2 = 144 \div 2 = 72[/tex]
the area of the whole shape :
[tex]294 + 72 = 366[/tex]
good luck
