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Pythagoras equation for leg

Find the correct Pythagoras equation for a leg

This math skill involves solving for a leg in a right triangle using the Pythagorean theorem. To find the value of a leg (like 'A' or 'B'), isolate the variable first, perform any necessary squares and arithmetic operations, and finally, take the square root of the resulting value.

Learn Pythagoras equation for leg

Teaching Transcript

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Solving pythagoras for a leg side like 'A' or 'B' means we first need to isolate the variable

Let's expand 4 squared and 5 squared first

Now let's subtract 16 from each side so 'B' squared is 9

If 'B' squared is 9, 'B' is the square root of 9

The square root of 9 is 3, so 'B' is 3

Skill Practice

Find the correct Pythagoras equation for a leg

Test your understanding of Pythagoras equation for leg by practicing it! Work through the below exercises to use it in practice.