an instrument use to construct straight line?
A spirit level or a plumb line.
An instrument to construct straight lines is called a rule. It's often referred to as a ruler, but a ruler is someone who rules a country. A rule is a piece of wood, metal or plastic (usually showing measurements) that you can use to draw/construct straight lines.A straight edgeThe most common one is a ruler
Use a straight edge and a protractor to construct an acute angle of 65 degrees
Well a straight line is something that you use in geometry and that is what you use to measure with.
Well a straight line is something that you use in geometry and that is what you use to measure with.
To construct an angle of 127.5 degrees, start by drawing a straight line using a ruler. Next, use a protractor to measure and mark 127.5 degrees from one end of the line. Draw a second line from the point where you marked 127.5 degrees to create the angle. Finally, label the angle as needed to complete your construction.
To construct a 225-degree angle, start by drawing a straight line to represent a base. Then, use a protractor to measure 225 degrees from one end of the line. Alternatively, you can first construct a 90-degree angle, then measure an additional 135 degrees (which is 225 degrees minus 90 degrees) on the opposite side of the base line. Finally, draw a line through the point marking the 225 degrees to complete the angle.
you can use a ruler or a book or anything that has a straight line
To construct a 70-degree angle, start by drawing a straight line and marking a point on it, which will be the vertex of the angle. Use a protractor to measure 70 degrees from the line, placing the center point of the protractor on the vertex. Mark a point at the 70-degree mark, then remove the protractor and draw a line connecting the vertex to this point. This creates a 70-degree angle.
Use a protractor and a straight edge to construct a 75 degree angle
Use a string for a straight line.
To construct a 25-degree bisection angle with a compass, start by drawing a straight line and marking a point ( A ) on it. Next, construct a 50-degree angle at point ( A ) by using a compass to draw an arc from ( A ) that intersects the line at point ( B ), then use the same arc to find point ( C ) such that ( \angle CAB = 50^\circ ). Finally, bisect ( \angle CAB ) by drawing an arc from points ( B ) and ( C ) that intersects at point ( D ), and draw a line from ( A ) through ( D ). This line creates the desired 25-degree angle with the original line.