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What is the value of x? |
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Answer» { SEE the attachment for the REQUIRED figure } By applying PYTHAGORAS theorem on triangle ABC, we get AB² + AC² = BC² or, x² + AC² = 6² or, AC² = 36 - x² Applying Pythagoras theorem on triangle ACD, we get AD² + DC² = AC² or, AD² + 3² = 36 - x² or, AD² = 36 - 9 - x² or, AD² = 27 - x² Again, applying Pythagoras theorem on triangle ABD, we get AD² + BD² = AB² or, 27 - x² + 3² = x² or, 2x² = 27 + 9 or, 2x² = 36 or, x² = 18 or, x = 3√2, taking the positive value Therefore, the value of x is 3√2 units # |
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