Answer:
1. P=2(a+b)
=2(4cm+6cm)
=2(10cm)
=20cm
2. P=a+b+c
=3cm+3cm+5cm
=13cm
3. P=a+b+c+d
=5cm+4cm+3cm+4cm
=16cm
4. P=8(1cm)+2(2cm)+2(3cm)
=8cm+4cm+6cm
=18cm
5. P=2(1cm+4cm+3cm)+2cm
=2(8cm)+2cm
=16cm+2cm
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Answers & Comments
Answer:
1. P=2(a+b)
=2(4cm+6cm)
=2(10cm)
=20cm
2. P=a+b+c
=3cm+3cm+5cm
=13cm
3. P=a+b+c+d
=5cm+4cm+3cm+4cm
=16cm
4. P=8(1cm)+2(2cm)+2(3cm)
=8cm+4cm+6cm
=18cm
5. P=2(1cm+4cm+3cm)+2cm
=2(8cm)+2cm
=16cm+2cm
=18cm