Multiple choice

Construct a right-angled triangle, whose one side is 3 cm and the length of hypotenuse is 5 cm. Measure the length of its other side.

  1.  2 cm 

  2. 4 cm

  3. 6 cm

  4. none of the above
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Using the Pythagorean theorem, a^2 + b^2 = c^2, where c is the hypotenuse (5 cm) and one side is 3 cm. Thus, 3^2 + b^2 = 5^2, which is 9 + b^2 = 25. Solving for b gives b^2 = 16, so b = 4 cm.

AI explanation

By Pythagorean theorem, the square of the hypotenuse equals the sum of the squares of the other two sides. Calculating the missing side gives the square root of 5 squared minus 3 squared, which is the square root of 16. The length of the other side is 4 cm.

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