Respuesta :

Answer:

1. 80

2. 20

3. 1080

Step-by-step explanation:

1. area= 1/2 x base x height

1/2 x 8 x 20= 80

2.  first you find the rectangle which is 5x6=30

then the triangle base is 14-6=8

1/2x8x5=20

3. 12x15x6=1080