Question

2.Calculate the area of triangle CDE with altitude EF, given C (3, −2), D (−1, 2), E (2, 3), and F (0, 1).
4 square units
6.2 square units
8 square units
8.7 square units

Answer 1

use this to determine length of your sides for cde then ef.
use area for triangle equation---

A = 1/2 base x height

Answer 2

The answer is c right