L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

12
L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm 50 cm 15 cm 25 cm

Transcript of L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

Page 1: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

5 cm

10 cm

Find perimeter

30 cm 50 cm

15 cm 25 cm

Page 2: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

6 cm

11 cm

Find perimeter

14 cm 66 cm

55 cm 34 cm

Page 3: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

2 cm

8 cm

Find perimeter

30 cm 16 cm

15 cm 20 cm

Page 4: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

8 cm

12 cm

Find perimeter

30 cm 40 cm

128 cm 20 cm

Page 5: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

3 cm

7 cm

Find perimeter

30 cm 21 cm

20 cm 10 cm

Page 6: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

5 cm

10 cm

Find

area

30 cm² 50 cm²

15 cm² 25 cm²

Page 7: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

4 cm

9 cm

Find

area

30 cm² 26 cm²

30 cm² 36 cm²

Page 8: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

2 cm

4.5 cm

Find

area

18 cm² 13 cm²

32 cm² 9 cm²

Page 9: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

6 cm

12 cm

Find

area

30 cm² 72 cm²

18 cm² 36 cm²

Page 10: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. calculating area and perimeter

5.5 cm

10 cm

Find

area

55 cm² 30 cm²

15.5 cm² 25 cm²

Page 11: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

L.O. Investigating perimeter - finding all possibilities

A farmer has a goat pen which uses 36 m of fencing.

One night, during a storm, the goat pen is destroyed.

Page 12: L.O. calculating area and perimeter 5 cm 10 cm Find perimeter 30 cm50 cm 15 cm25 cm.

The farmer wants to re-build the rectangular goat pen, but has only 36m of fencing and cannot remember the exact dimensions from the first pen.

Can you help ?

Remember:

• the pen is rectangular

• only 36m of fence can be used