Answer:
368 units
Explanation:
Well let’s start with the square.
square)
Dimensions: 18 and 13
Area 18*13 = 234
Perimiter: 18+18+13+13
= 62
234 + 62
= 296
rectangle)
Dimensions: 12 and 6
Area: 12*6 = 36
Perimiter: 12+12+6+6
=36
36 + 36
= 72
72+296
=368
Thus,
the sum of both areas and perimeters is 368units.