Answer:
Area = 2.28 sq km
Perimeter = 13.7 km
Step-by-step explanation:
[tex]A(\triangle)=\frac{1}{2}(1.2)(3.8)[/tex]
[tex]\implies A(\triangle)=(1.2)(1.9)[/tex]
[tex]\implies \boxed{\red{\bold{A(\triangle)=2.28\:km^2}}}[/tex]
[tex]P(\triangle)=7+1.2+5.5[/tex]
[tex]\implies \boxed{\purple{\bold{P(\triangle)=13.7\: km}}}[/tex]
