The area would be 84m2
Because first you work out the area of the triangle on the left : 7*4 = 28 / 2 = 14
14+14 = 28... Because there are 2 triangles
Then you work out the area of the square : 8*7=56
Lastly you add both areas together to get the area of the entire shape:
56 + 28 = 84cm2