answer it with proof please, so I know how you got it.
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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:
79.5 units²
Step-by-step 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