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bc = 10 cm
ab² = bc²-bd²
ad² = bd²+cd²
ac² = bc²-cd²
ab²= bc²-bd²
6² = 10²-bd²
bd² = 100-36
bd² = 64
bd = √64
bd = 8 cm
cd = 10 cm - 8 cm = 2 cm
ad² = bd² + cd²
ad² = 8² + 2²
ad² = 64 + 4
ad² = 68
ad = √68
<=> ad = 2√17
ac² = bc²-cd²
ac² = 10²-2²
ac² = 100-4
ac² = 96
ac = √96
ac = 4√6
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