# 005 Sample Final A, Question 15

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** Question ** Find an equivalent algebraic expression for the following,

Foundations |
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1) can be thought of as and this now refers to an angle in a triangle. What are the side lengths of this triangle? |

Answers: |

1) The side lengths are 1, x, and |

Step 1: |
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First, let . Then, . |

Step 2: |
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Now, we draw the right triangle corresponding to . Two of the side lengths are 1 and x and the hypotenuse has length . |

Step 3: |
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Since , . |

Final Answer: |
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