. In triangle ABC, AD is perpendicular to BC and CF perpendicular to AB. Given
that BC =12cm, AD = 8 cm, CF = 6 cm. Find the length of AB
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Step-by-step explanation:
Area of triangle ABC = 1/2 × base × height
Therefore, 1/2 × BC × AD = 1/2 × AB × CF
=> 1/2 × 12 × 8 = 1/2 × AB × 6
=> 48 = 3 AB
=> 48/3 = AB
=> 16cm = AB
therefore length of AB is 16cm
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