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What is the fifth postulate of Euclid's?
The parallel postulate: "That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles."
What is a mathematical intersection?
the middle of two line segments crossed (should make four 90 degree angles.
How many right angles does a oval have?
None - the edge is curved so no straight sections to make angles
How do you make 75 degree?
Use a protractor and a straight edge to construct a 75 degree angle
What is the supplement of a acute angle?
First, an acute angle is an Angle that is less than a right angle (<90°) Secondly, an obtuse angle is one that is more than a right angle but less then a straight angle (<180°) then, the complementary angles of a pair of angles is 90° or a Right angle and the complement of an acute angle is the amount needed of an unknown angle (against known angles) to make 90° or a right angle a supplementary angle are a pair of angles which, when Added together, make 180° or a straight line. and the suplement to an angle is the value of an unknow angle to to be added on to make 180°
How many 45 degree angles can make a straight line?
It takes four times because 45+45=90+45=135+45=180. So all of those angles can make a straight line.
How many right angles would you put together to make a straight line?
How many of these 30° angles will fit together to make a straight line?
Why can't triangles be 180 degree angles?
A 180 degree angle is really a straight line. This would be easier to show with a drawing but I can't do that here.Note however that the three angles that make up a triangle together will equal 180 degrees.
How many right angles are needed to form a straight angle?
A straight angle is a line which has an angle of 180 degrees therefore two right angles (90 degrees) make a line.
An angle whose sides make a line is called?
A 180 Degree angle therefore a straight line.
What are perpendicular ling segments?
Perpendicular line segments are line segments that intersect and make 90 degree angles.
An angle whose sides make a line is a?
180 degree angle or a straight angle
Why is it impossible for a triangle to contain an 180 degree angle?
The sum of the three included angles of a triangle always = 180 degrees. So if one angle = 180 degrees (a straight line) then the other two included angles will be = 0 degrees which cannot make a triangle.
What is the fifth postulate of Euclid's?
The parallel postulate: "That, if a straight line falling on two straight lines make the interior angles on the same side less than two right angles, the two straight lines, if produced indefinitely, meet on that side on which are the angles less than the two right angles."
What is a mathematical intersection?
the middle of two line segments crossed (should make four 90 degree angles.
Does a triangle and a line have equal 180?
If you took the three angles of a triangle and glued them on a piece of paper side by side the outer sides would make a straight line. A triangles three angles add up equal 180 degrees. A straight angle,line, equals 180 degrees.
What are ways you use straight angles in real life?
You can use straight angles to make sure countertops, or walls are straight and in a right formation.
