A right-angled triangular canvas banner for the National Day concert has a base of 10 cm along the bottom edge and a perpendicular height of 6 cm rising from one end. Find the area of the banner.
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Worked Solution
Step 1: Identify the base and the perpendicular height.
Base = 10 cm; perpendicular height = 6 cm (the height is at right angles to the base).
Step 2: Apply the triangle area formula.
Area = ½ × base × perpendicular height = ½ × 10 × 6 = 30 cm².
Final answer: area = 30 cm².
Answer: 30 cm²
Correct answer: 30 cm²
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