Concept Videos
Draw a line parallel to a given line AB at a distance of 2.5 cm.Draw a line l, take a point A above it. Draw a line segment AB, take a point P below it. Draw a line AB and then construct another line parallel to AB which is 4 cm above it.
How do you construct a 135 degree angle and bisect it?
(i) On a line l, using a protractor measure ∠POQ of 135°. (ii) Draw an arc of convenient radius by taking O as centre. Let this intersect both rays of angle 135° at points A and B, respectively. (iii) Take A and B as centres, draw arcs of radius more than half of AB in the interior of angle of 135°.
Can we construct 135 degree angle with compass?
To construct a 135∘ angle using a compass and ruler only, angles are required to be constructed.
How do you construct a 135 degree class 9?
To construct an angle of 135°.
Draw an angle BOA = 90° at point O of given line AC.Bisect the angle BOC on the other side of OB, which is also 90°Thus, ∠BOD = ∠COD = 45° And, ∠AOD = 90° + 45° = 135°
What type of angle is 135?
c) 135 degrees is greater than 90 degrees and an angle that is greater than the right angle (90 degrees) and less than 180 degrees is an obtuse angle.
What polygon has an interior angle of 135?
What type of polygon is it? Summary: An interior angle of a regular polygon has a measure of 135°, it is an octagon.
Can we construct 135?
It is possible to construct an angle of 135° with the help of compass and ruler.
How do you construct a 136 degree angle?
Answer
Make a line segment of any length,mark that line AB.On that line segment match the base line of the protector.After 90° angle you will get 130°-140° angle,count 6th line from 130°,that angle is 136° angle,mark that point.Draw a line to join that point with point A.
Can we construct 140 degree angle with compass?
Only the angle which are multiples of and so on can be constructed directly with the help of compass. So, 140° cannot be constructed using compass.
How do you construct a 67.5 degree angle?
Consider 60 degree and 90 degree, bisect considered both will give 75 degree. Again consider 75 degree and 60 degree bisect angle betwwen them, you will get 67.5 degree.
How do you construct a 105 degree?
Expert Answer:
draw 120 degree angle.then draw 90 degree angle.the angle between the two rays will be 30 degree, draw the angle bisector.now 90 + 15 = 105.
How do you construct a 120 degree angle?
Draw a line segment of any measure named as PQ.
With P as centre draw an angle of 120o with the help of protractor.With M and N as centres and with radius little more than half the arc, draw arcs cutting each other at T. Join PT which is the required bisector of ∠SPQ=120o.∴∠TPQ=∠TPS=60o (each)
What is the opposite of 135 degrees?
The complement of −135° is the angle that when added to −135° forms a right angle (90° ).
How do you construct an angle?
Constructing a 60° angle
open the compass to the same dimensions as our original line.place the point of the compass on one end of the line and draw an arc.repeat this at the other end and the arcs should intersect where the tip of the triangle should be.
How do you measure a supplement?
To determine the supplement, subtract the given angle from 180. 180 – 43 = 137° The supplement of 43° is 137°. To determine the complement, subtract the given angle from 90.
