Answer:

11.20cm

12.19cm

13.16cm

14.36cm

15.14 cm

Step-by-step explanation:

SOLUTION

1.(5)×(4) Note:number 4 is the sides where square has 4 sides

=20

2.8+5+6

=19

(Note:If its irregular polygons just add them all)

3.14+2

=16

4.12+9+14

=36

5.10+4

=14

Answer:

1. 20cm

2. 19cm

3. 16cm

4. 36cm

5. 14cm

Step-by-step explanation:

1. P = 4a

      = 4(5cm)

      = 20 cm

2. P = a+b+c

       = 8cm+5cm+6cm

       = 19cm

3. P = a+b

       = 14cm+2cm

       = 16cm

4.  P = a+b+c

        = 9cm + 12cm + 15cm

        = 36cm

5. P = a+b

      = 10cm + 4cm

      = 14cm