Question

Answer it with proof please, so I know how you got it.

Answer 1

I think it's 79.50 square units. there three triangles in the quadrilateral shape above with the areas given so add the areas together to get the answer

Answer 2

79.5 units²

Explanation:

The figure ABCDE is composed of the 3 triangles, hence

area of ABCDE = area ΔABC + area ΔACD + area ΔAED

= 23.85 + 29.4 + 26.25 = 79.5 units²