Investigating Angles Drawing an Angle Geometry Investigating Angles Drawing an Angle

Angles An angle consists of a vertex and two arms. This angle is named XYZ or ZYX X arm vertex angle Y Z arm

Drawing Angles

Drawing Angles Example: Draw an angle DEF with a measure of 65° Step 1: To draw an angle, start with one arm of the angle. Example: Draw an angle DEF with a measure of 65° E F

Drawing Angles Example: Draw an angle DEF with a measure of 65° F E Step 2: Place a protractor on top, with the vertex and base aligning with the vertex and arm of the angle. Drawing Angles Example: Draw an angle DEF with a measure of 65° E F

Drawing Angles Example: Draw an angle DEF with a measure of 65° Step 3: Place a mark at 65° on the edge of the protractor. Drawing Angles Example: Draw an angle DEF with a measure of 65° E F

Drawing Angles Example: Draw an angle DEF with a measure of 65° Step 4: Remove protractor and draw arm from vertex (E). Label as arm D. Drawing Angles Example: Draw an angle DEF with a measure of 65° D 65° E F

Drawing Angles Example: Draw an angle RST with a measure of 123° Step 1: To draw an angle, start with one arm of the angle. Example: Draw an angle RST with a measure of 123° R S

Drawing Angles Example: Draw an angle RST with a measure of 123° R S Step 2: Place a protractor on top, with the vertex and base aligning with the vertex and arm of the angle. Drawing Angles Example: Draw an angle RST with a measure of 123° R S

Drawing Angles Example: Draw an angle RST with a measure of 123° Step 3: Place a mark at 123° on the edge of the protractor. Drawing Angles Example: Draw an angle RST with a measure of 123° R S

Drawing Angles Example: Draw an angle RST with a measure of 123° Step 4: Remove protractor and draw arm from vertex (S). Label as arm T. Drawing Angles Example: Draw an angle RST with a measure of 123° T R 123° S