Answers:
24 mm², 26.5 mm
Step-by-step explanation:
Area of the triangle:
[tex]A=\frac{b*h}{2}\\\\A=\frac{12*4}{2}\\\\ A=\frac{48}{2}\\\\ \boxed{A=24}[/tex]
Perimeter of the triangle:
[tex]P=a+b+c \text{ (The side measurements of the triangle.)}\\\\P=6+12+8.5\\\\\boxed{P=26.5}[/tex]
Hope this helps.
