Question

Find the area D (1,3) F (-4,-3) E (4, -3)​

Answer 1

Explanation:

FE=4+4=8

Altitude=3+3=6

area=1/2×FE×6=1/2×8×6=24 sq. units.

or

area=1/2×

I 1 3|

|-4 -3|

| 4 -3|

| 1 3|

=1/2[(-3+12)+(12+12)+(12+3)]

=1/2[9+24+15]

=1/2[48]

=24 sq. units