Area: Rhombus, Trapezium, Circle and Units (m², acres, hectares)

Grade 7 · Mathematics · Measurements (Area)

Rhombus = ½ x d₁ x d₂. Trapezium = ½ x (a + b) x h. Circle = πr² (use π = 22/7 or 3.14). 1 hectare = 10,000 m². 1 acre ≈ 4,047 m².

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