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ULTIMATE MATHS

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Example 1
In this first example, we know that side a is 7 cm long and that side b is 5 cm long. We will use Pythagoras Theorem to find the length
of the hypotenuse (c).
By substituting 7 and 5 into the equation and then solving it we have have found the length of c. We have square rooted 74; in some
cases it may be better to give your answer in square root form as it is more accurate.

7cm

5cm

Example 2
In this example, we will use the reverse formula to find the length of b.
Using the reverse formula, we were able to find the length of b: 8cm. We substituted 10 and 6 into the formula to find length b. In this
case, we got a whole number answer.

10cm

6cm

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Chapter 30: Learning Outcomes
Students will be introduced to the Pythagorean theorem and the formula
a^{2}+b^{2}=c^{2}!
Students will learn how to find missing sides of right angled triangles!

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