Can someone help? I suck at this

23 cm squared

Step-by-step explanation:

Split the shape into two shapes.

Shape one:

5 x 3 = 15 cm squared

Shape two:

7 - 3 = 4 (length of a side of the second shape)

4 x 2 = 8 cm squared

15 + 8 = 23 cm squared

The answer should be 126

Step-by-step explanation:

10 cm

step-by-step explanation:

if the polygon is a rectangle, then the perimeter is x+x+y+y. using the values that you gave, the perimeter is 3+3+2+2=10cm.