🎯 WALT & Success Criteria

We Are Learning To: Find the perimeter of composite shapes by decomposing them into simpler shapes.

Success Criteria - Tick when you can do this:

📐 Part 1: Shape Analysis

🧮 Part 2: Perimeter Investigation

a) 45 mm = _______ cm

b) 120 mm = _______ cm

c) 8.5 cm = _______ cm (already converted!)

Given measurements: Top edge: 80 mm, Right edge: 6 cm, Bottom right: 30 mm, Inner vertical: 25 mm, Inner horizontal: 50 mm, Left edge: 8.5 cm

Step 1: Convert all measurements to the same unit (cm):

Step 2: Add all outside edge lengths:

Final Answer: Perimeter = _______ cm