Question

In the given Figure, find the length BC​

Answer 1

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Answer 2

Solution :-

In Right triangle ADB,

AB² = BD² + AD²

• (By Pythagoras theorem)

10² = 8² + BD²

100 - 64 = BD²

36 = BD²

BD = 6 cm

In Right triangle ADC

AC² = CD² + AD²

17² = CD² + AD²

289 - 64 = CD²

CD² = 225

CD = 15 cm

Therefore,

BC = BD + DC

↪6 cm + 15 cm = 21 cm