Andrews secondary 13cm of the triangle below 12cm

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Unformatted text preview: se 3 MIA Ch12 (page 130) Starter Questions 1. 2 .3 x 8 2 . C o nve r t m e t r e s ( m ) ( a ) 2 0 0 c m ( b ) 5 5 0 c m ( c ) 5 0 c m St. Andrew's Secondary 3 3 . o f 3 2 0 4 4 . Find 2 num b e r s t h a t a d d t o g ive 7 a nd m ult ip ly t o g ive 10 . Perimeter Learning Intention Success Criteria 1. Work out missing lengths. 2. Calculate the perimeter of a shape. St. Andrew's Secondary 1. To work out the perimeter of a shape by first working out missing lengths. Perimeter Problem St. Andrew's Secondary x m Below is a draw of the school building. Calculate the perimeter. 4 m 8 m 9 m 4 m 12 m = 12 + 8 + 3 + 4 + 9 + 4 = 40 m x = 12 9 =3 m Perimeter Perimeter Problem St. Andrew's Secondary 4 m Below is a drawing of a kitchen plan. Calculate the perimeter. y cm 6 m 2 m 4 cm 2 m y = 6 4 = 2 m Perimeter = 6 + 4 + 2 + 2 + 4 + 2 = 20 m Perimeter St. Andrew's Secondary Now try Exercise 4 MIA Ch12 (page 132)...
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