Finding Missing Side Lengths
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Finding Missing Side Lengths
📐 Part 1: Rectangle Composite Shapes
Instructions: Find the missing side length x for each composite shape. Use the given total area and known measurements.
Large rectangle: 12 ft × 6 ft
Small rectangle: x ft × 4 ft
x = _______ ft
Bottom rectangle: 15 in × 6 in
Top rectangle: 5 in × x in
x = _______ in
Left rectangle: 8 ft × 12 ft
Right rectangle: x ft × 10 ft
x = _______ ft
Horizontal rectangle: 20 in × 5 in
Vertical rectangle: 6 in × x in
x = _______ in
🔺 Part 2: Triangle and Rectangle Combinations
Instructions: These shapes combine rectangles and triangles. Remember: Triangle Area = ½ × base × height
Rectangle: 8 ft × 9 ft
Triangle: base = 6 ft, height = x ft
x = _______ ft
Rectangle: 12 in × 7 in
Triangle: base = 12 in, height = x in
x = _______ in
Rectangle: 10 ft × 6 ft
Triangle: base = 5 ft, height = x ft
x = _______ ft
Rectangle: 16 in × 8 in
Triangle: base = x in, height = 4 in
x = _______ in
🎯 Part 3: Challenge Problems
Large rectangle: 12 ft × 10 ft
Small rectangle: 8 ft × 6 ft
Triangle: base = 8 ft, height = x ft
x = _______ ft
Rectangle (shaft): x in × 6 in
Triangle (point): base = 8 in, height = 9 in
x = _______ in
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