Answered: Finding angles of 3D figures Consider…

Finding angles of 3D figures Consider point A to be at (-1,0,2), point B at (4,1,1), and point C at (-2,2,0). Find the measure of angle B.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter12: Angle Relationships And Transformations

Section12.3: Angles And Polygons

Problem 21E

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Concept explainers

Coordinate Geometry

Coordinate geometry, also known as analytic geometry or Cartesian geometry in classical mathematics, is a type of geometry that is studied using a coordinate system. Coordinate geometry is a branch of mathematics that describes the position of points on a plane using an ordered pair of numbers called coordinates.

Question

Finding angles of 3D figures

Consider point A to be at (-1,0,2), point B at (4,1,1), and point C at (-2,2,0). Find the measure of angle B.

Figure in plane geometry formed by two rays or lines that share a common endpoint, called the vertex. The angle is measured in degrees using a protractor. The different types of angles are acute, obtuse, right, straight, and reflex.

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