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Using a compass and ruler: # At the point you want the perpendicular line to cross, place a dot. Label it A. # Draw a circle centred at A with a radius of about an inch (two-three centimetres). Label the points it intersects the original line as B and C. # Construct two circles centred at B and C, large enough that they almost reach the other point and have the same size. Label the points they intersect at as D and E. # Draw a straight line between E and D. This line is the perpendicular line. This method can also be used to draw a perpendicular bisector, if the ends of the line you wish to bisect are labelled as points B and C.
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How do you find the altitudes of an ontuse angle?
Draw a line perpendicular to the horizon axis, that goes from the top vertex, to a line that is the continuation of the base.
Are a vertical line and a horizontal line parallel or perpendicular?
Perpendicular is when a line is at a right angle to another. Parallel lines are side by side and even if they were to go on to infinity, would never meet. Therefore the answer is perpendicular.
What line is perpendicular to a vertical line?
A horizontal line is perpendicular to a vertical line.
A first step in the construction of a perpendicular bisector is to draw a n?
Open the compass to a little more than half the distance between the two points. Draw arcs from above the line to below the line from each end. This will look a little bit like an American football. The line that goes through the pointed ends of the football is the perpendicular bisector.
How do you get a perpendicular line?
To make perpendicular lines, draw a horizontal line. Then using a compass or tracing around the edge of a curved object, draw one circle ( or just a semi-circle) so that it crosses the horizontal straight line in at least one point. Now rotate the compass or move the curved object to draw another circle (or semi-circle). This second circle (or semi-circle) must cross through the horizontal straight line as the first one did. It also must cross through the first circle (or semi-circle) at two points- above the horizontal straight line and below the horizontal straight line. Next, draw a straight line from where the two circles (or semi-circles) meet above the horizontal straight line through to where they meet below the horizontal straight line. You now have a line perpendicular to the first line.
