Answer:
Step-by-step explanation:
DC=2-0=2
Or
DC=√[(2-0)²+(-2-(-2))²]=√[4+(-2+2)²]=√4=2
BC=(0-(-2))=2
BC=√[(2-2)²+(-2-0)²]
=√[0+4]
=2
AB=√[(2-0)²+(0-4)²]
=√[4+16]
=√20
=2√5
Perimeter=2[DC+BC+AB]
=2[2+2+2√5]
=2[4+2√5]
=8+4√5 Units
