Math, asked by ShNTAUNT, 2 months ago

in triangle abc, ange a is 90, find bc when ab is 5.6cm and ac is 4.2cm

Answers

Answered by CopyThat
9

Given

  • A ΔABC, ∠A = 90°
  • AB = 5.6 cm
  • AC = 4.2 cm

To find

  • BC = ? cm

Solution

  • In ΔABC, ∠A = 90°
  • BC² = AB² + AC²
  • BC² = 5.6² + 4.2²
  • BC² = 31.36 + 17.64
  • BC² = 49
  • BC = √49
  • BC = 7

☯ Length of AB = 7 cm

Learn more

  • https://brainly.in/question/34864718
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