Question

What is the area of triangle DEF?



2 StartRoot 2 EndRoot square units


2 StartRoot 14 EndRoot square units


6 StartRoot 22 EndRoot square units


12 StartRoot 77 EndRoot square units



The answer is B

Answer 1

Answer:

B. $2\sqrt{14}$

Step-by-step explanation:

Plug it in Heron's formula.

Answer 2

Answer:

2 StartRoot 14 EndRoot square units

Step-by-step explanation: i just did it :)