Post on 30-Jul-2015
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)
PARALLELPERPENDICULAR SKEW
ADJACENTSUPPLEMENTARYCOMPLEMENTARY
OBTUSE ACUTEFLAT RIGHT
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