Similar triangles: Missing sides with other triangles

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Presentation transcript:

Similar triangles: Missing sides with other triangles Silent Teacher Intelligent Practice Narration Your Turn Practice

Similar triangles within other shapes Triangles not drawn to scale Example Your turn 8mm 6m 6m x x2 4mm 5mm 3m 7.5m 8mm x x2 7.5x2 = 15m 5x2 = 10cm

Intelligent Practice – Find the length of every missing side Triangles not drawn to scale 12mm 20mm x 1. 2. 3. 10mm x 6mm 12mm 4.

Intelligent Practice – Find the length of every missing side Triangles not drawn to scale 5. 6. x 6mm 12mm 3mm 8mm

Practice – Find the length of every missing side Triangles not drawn to scale 12mm 20mm x 1. 2. x3 5x3=15mm x4 4x4=16mm 3. 10mm x 6mm 12mm 4. x3 6÷3=2mm x2 6÷2=3mm

Practice – Find the length of every missing side Triangles not drawn to scale 5. 6. x1.5 6÷1.5=4mm x 6mm 12mm 3mm 8mm x1.5 6÷1.5=4mm 8x1.5=12mm 12-8 = 4mm