Ud1.4 angles

TECHNICAL

DRAWINGTECHNICAL DRAWING & BASIC GEOMETRIC CONSTRUCTIONS

JULIA MENA GARCÍA

1.INTRO

2.DRAWING TOOLS

3.TRIANGLES

4.PARALLELS

5.ANGLES

6.CIRCLES

7.+INFO

8.SUMMING UP

INDEX

ANGLES

ANGLES

LEARNING TO USE THE SET OF TRIANGLES

A SET OF TRIANGLES CAN BE USED TO DRAW PARALLEL AND PERPENDICULAR LINES IN AN EASY AND PRECISE

WAY.LOOK AT THE ANGLES WE CAN GET DIRECT LY JUST

CHANGING THE POSIT ION OF BOTH TRIANGLES.

SQUARE

TRIANGLE

LEARNING TO CREATE ANGLES WITH THE SET OF TRIANGLES

DRAW ALL THESE ANGLES IN YOUR NOTEBOOK USING ONLY THE SET OF TRIANGLES:

-30º, 45º, 60º, 90º, 120º-150º (90º+60º)-135º (90+45º)-105º (60+45º)-75º(45º+30º)

OPEN PAGE 86 ON YOUR BOOK

TRY TO GUESS THE NAME OF THESE ANGLES BY LISTENING TO THE AUDIO

19

PERPENDICULAR

PARALLELPERPENDICULAR

PARALLELPERPENDICULAR SKEW


COMPLEMENTARY


SUPPLEMENTARYCOMPLEMENTARY


ADJACENTSUPPLEMENTARYCOMPLEMENTARY



FLAT



OBTUSEFLAT



OBTUSEFLAT RIGHT



OBTUSE ACUTEFLAT RIGHT

HOW MANY CORRECT ANSWERS DID YOU GET??

HOW MANY CORRECT ANSWERS DID YOU GET??

-Parallel lines never intersect because all their point are equidistant.

-When two lines cross forming four right angles they are called perpendicular lines.

-Oblique lines are neither parallel nor perpendicular.

-Angles which share one side and the vertex are adjacent.-Two angles are complementary if they add up to 90 degrees and they are sumplementary angles if they up to 180 degrees.

-A right angle measures 90 degrees, an obtuse angle is greater than 90 degrees and an acute angle less than 90.

19 LISTEN AGAIN

HOW TO COPY AN ANGLE

VIDEO 1

COPY THE ANGLES YOU HAVE IN PAGE 86 IN YOUR BOOK

EXERCISE


VIDEO 2


LET’S DO THE EXERCISE


VIDEO 3


LET’S DO THE EXERCISE

Ud1.4 angles

Art & Photos

Transcript of Ud1.4 angles