Mathematics
Grade9
Easy

Question

Calculate the length of the hypotenuse. Round to the nearest tenth.

  1. 23.1 cm
  2. 30.4 cm
  3. 41 cm
  4. 1681 cm

hintHint:

Pythagoras theorem states that “In a right-angled triangle, the square of the hypotenuse side is equal to the sum of squares of the other two sides“. The sides of this triangle have been named Perpendicular, Base and Hypotenuse. Using this theorem we can find the missing side.

The correct answer is: 30.4 cm


    Using Pythagoras theorem,
    perpendicular, p = 14cm, base, b = 27cm, hypotenuse, h = ?
    h squared equals p squared plus b squared
h squared equals 14 squared plus 27 squared
space space space space equals 196 plus 729
space space space space equals 925
h space equals square root of 925
space space space equals 30.4 space c m

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