The total area that the rectangular vegetable garden and triangular pet exercise area takes up is 893 square feet.

**Solution:**

Base of the triangle = 16 ft

Height of the triangle = 28 ft

Area of the triangle =

**Area of the triangle = 224 square feet **

Length of the rectangle = 32 ft

Width of the rectangle = 21 ft

Area of the rectangle = length × width

= 32 × 21

**Area of the rectangle = 672 square feet**

Total area = Area of the triangle + Area of the rectangle

= 224 square feet + 672 square feet

= 896 square feet

**The total area that the rectangular vegetable garden and triangular pet exercise area takes up is 893 square feet.**