### Example: What is the sine of 35°?

Using this triangle (lengths are only to one decimal place):

sin(35°) | = Opposite / Hypotenuse |

= 2.8 / 4.9 | |

= 0.57... | |

cos(35°) | = Adjacent / Hypotenuse |

= 4.0 / 4.9 | |

= 0.82... | |

tan(35°) | = Opposite / Adjacent |

= 2.8 / 4.0 | |

= 0.70...## Find the length of side b if side c is 38 m and angle A is 48°## 1. Which ratio corresponds to cos35? |

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