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Grade 10 maths · A.5 · Triangles

Use the Pythagorean theorem to find the hypotenuse

Add the squares of the legs, then take the square root.

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  1. What is the hypotenuse of a right triangle with legs 7 cm and 24 cm?

    Answer: 25

  2. A right triangle has legs of 12 cm and 5 cm. How long is the hypotenuse?

    Answer: 13

  3. The two legs of a right triangle measure 10 cm and 24 cm. Find the length of the hypotenuse.

    Answer: 26

Tip: Add the squares of the legs, then take the square root.

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