Answer: Area= 18 cm; Perimeter: 18 cm
Step-by-step explanation:
1. Figure out the base and height:
Since the base is 3x-3; the height would be (3x-3)+3
2. Subsitute for x:
Base: 3(2)-3 => 6-3 => 3 cm
Height: (3(2)-3)+3 => (6-3)+3 => 3+3 => 6 cm
3. Figure out the Area:
A=b*h => A=3*6 => 18 cm
4. Figure out the perimeter:
P= 2b+2h => 2*3 + 2*6 => 18 cm
