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How to find the unknown length of right triangle

How to find the unknown length of right triangle
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How to find the unknown length of right triangle

How to find the unknown length of right triangle-example-1
User Cheloute
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1 Answer

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If you know that, you can use sin45°.
sin45°=√2/2
Because AC=18
So, the AB=9√2
And it is a right triangle, the other angle are both 45°.
So, AB=BC=9√2
Those are answer, If you don't understand you can ask me.
User Jemal
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8.4k points
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