The meanings given here should help you to understand the statements and problems in which these words are used. ... angles. Altitude in a triangle, the perpendicular from any vertex to the opposite side; in a parallelogram or trapezoid, the perpendicular distance between two parallel sides. ... Angle of depression the angle between the horizontal and the line of sight from a person to a point below him.

Title | : | Basic Mathematics |

Author | : | Ethel L. Grove, Anne M. Mullikin |

Publisher | : | - 1961 |

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