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primary 5 | Maths
| Angles & Geometry
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Date Posted: 2 years ago
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width of rectangle 48 cm = 3 × base of 1 small ▲
Base of 1 small ▲ = 48 cm ÷ 3 = 16 cm
Length of rectangle = 52 cm = 4 × height of 1 small ▲
Height of 1 small ▲ = 52 cm ÷ 4 = 13 cm
The hexagon has been divided into 6 identical ▲by the lines you drew. They are identical to the 6 outer ▲
Area of shaded part = Area of 12 ▲
= 12 × ½ × base × height
= 6 × 16 cm × 13 cm
= 1248 cm²
Next,
width of rectangle 48 cm = 3 × base of 1 small ▲
Base of 1 small ▲ = 48 cm ÷ 3 = 16 cm
Length of rectangle = 52 cm = 4 × height of 1 small ▲
Height of 1 small ▲ = 52 cm ÷ 4 = 13 cm
The hexagon has been divided into 6 identical ▲by the lines you drew. They are identical to the 6 outer ▲
Area of shaded part = Area of 12 ▲
= 12 × ½ × base × height
= 6 × 16 cm × 13 cm
= 1248 cm²
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