Checking and further securing understanding of Pythagoras' theorem
I can use Pythagoras' theorem to calculate the length of a side of a right-angled triangle.
Checking and further securing understanding of Pythagoras' theorem
I can use Pythagoras' theorem to calculate the length of a side of a right-angled triangle.
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Lesson details
Key learning points
- The sum of the squares of the two shorter sides equals the square of the longest side
- The longest side is always opposite the right angle
- The difference between the squares of the longest and known shorter sides is the square of the remaining side
- A calculator can perform these calculations efficiently
- Rounding gives a less accurate answer so there might be times you wish to leave your answer with an operator
Keywords
Hypotenuse - The hypotenuse is the side of a right-angled triangle which is opposite the right angle.
Pythagoras' theorem - Pythagoras’ theorem states that the sum of the squares of the two shorter sides of a right-angled triangle is equal to the square of the hypotenuse.
Common misconception
Misidentifying the hypotenuse.
The hypotenuse is the longest side of a right-angled triangle. It is always opposite the right-angle.
To help you plan your year 10 maths lesson on: Checking and further securing understanding of Pythagoras' theorem, download all teaching resources for free and adapt to suit your pupils' needs...
To help you plan your year 10 maths lesson on: Checking and further securing understanding of Pythagoras' theorem, download all teaching resources for free and adapt to suit your pupils' needs.
The starter quiz will activate and check your pupils' prior knowledge, with versions available both with and without answers in PDF format.
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Explore more key stage 4 maths lessons from the Right-angled trigonometry unit, dive into the full secondary maths curriculum, or learn more about lesson planning.
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Starter quiz
6 Questions
Exit quiz
6 Questions
