GCSE Maths Practice: pythagoras-theorem

Question 3 of 10

This question calculates the hypotenuse of a right-angled triangle with sides 8 cm and 15 cm.

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\( \begin{array}{l}\text{In a right-angled triangle, two sides are 8 cm and 15 cm.}\\ \text{Find the hypotenuse.}\end{array} \)

Choose one option:

Hypotenuse = √(side1² + side2²).

Applying Pythagoras' Theorem: 8^2 + 15^2 = 64 + 225 = 289, then √289 = 17 cm. Recognising the longest side as the hypotenuse is essential. Practising these calculations builds speed, accuracy, and confidence in GCSE geometry questions, particularly in triangle problems and real-world applications like measuring distances.