WAL how to find the perimeter and area of some classroom objects.

Term 4

OBJECT | PERIMETER | AREA |

Formula | P= 2 (L + B) mm,cm,m | A = L x B/W (sq mm,sq cm,sq m) |

Maths book | P= 2( 25 + 21)cm 25+21=42x2=92cm P = 92 cm | A=(25x21) sq cm 25x21=525 A =525 sq cm |

Modelling book | P=2(39+31)cm 39+31=70x2=140 P=140 cm | A=(39x31) sq cm 39x31=1209 A=1209 sq cm |

Large Rectangular Table | P=2(121+80)cm 121+80=201x2=402 P=402 cm | A=(121x80) sq cm 121x80=9680 A=9680 sq cm |

Tote tray | P=2(50+15)cm 15+50=65x2=130 P=130 cm | A=(50x15) sq cm 50x15=750 A=750 sq cm |

My Reflection

I am learning to find the area and perimeter of an object. It can be tricky to find the correct measurements. My teacher can help me with my work along with my mum and dad. The next step for me is to find the volume of an object.