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Answer:AABC is a right-angled at B, and D is a point on BC. If AD = 29 cm,BD = 21 cm and CD = 27 cm. Find AC.​

Answer»

Step-by-step EXPLANATION:

To find AC we need AB,BC

  • By using pythagoras theorem

  • AD Square=AB Square+BD Square
  • 29 Square=AB Square+21 Square
  • AB=Root 841-441
  • AB=Root 400
  • AB=20 cm

  • BC=BD+DC
  • BC=21+27
  • BC=48cm

  • AC=Root AB Square +BC Square
  • AC=Root 20 Square+48 Square
  • AC=Root 400+2304
  • AC=Root 2704
  • AC=52 cm

Therefore AC is 52 cm

Thank you



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