GCSE Maths Practice: pythagoras-theorem

Question 2 of 10

This question applies Pythagoras' Theorem to a 3-4-5 right-angled triangle.

‹ ›

\( \begin{array}{l}\text{Find the hypotenuse of a triangle with sides } 3 \text{ cm and } 4 \text{ cm.}\end{array} \)

Choose one option:

Check addition of squares carefully, then take square root.

Using Pythagoras' Theorem, the hypotenuse of a triangle with sides 3 cm and 4 cm is calculated as √(3² + 4²) = √(9 + 16) = √25 = 5 cm. This classic 3-4-5 triangle demonstrates a common application of the theorem and reinforces the relationship between side lengths in right-angled triangles. This knowledge is useful for problem-solving, geometric constructions, and real-life applications such as navigation and architecture.