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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

Respuesta :

Answer:

Step-by-step explanation:

CD=√((-1-3)²+(2+2)²)=√(16+16)=√32=4√2

Altitude EF=√((0-2)²+(1-3)²)

=√(4+4)=√8=2√2

area=1/2 ×4√2×2√2=8 square units

Answer:

8

Step-by-step explanation:

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