Respuesta :

choccocakee
a) 1/2 multiplied by base multiplied by height is area of a triangle

1/2*10.14*12.2

Which is 61.854 cm^2

b) minus the area of the larger triangle by the area of the smaller triangle

61.854-40.325

Which is 21.529 cm^2

dyllan73
The person above me is correct