Q. 94.2( 27 Votes )

# Draw an angle of 40°. Copy its supplementary angle.

Answer :

Step 1: Draw any arbitrary line AB and with the help of a compass draw its bisector CD.

Step 2: Measure AE and draw a quarter arc with the compass placing on A.Repeat for EB.

Step 3: With the same measurement draw an arc from E. Join H and I.mark the intersection of CD and HI as J. Join AJ. Measure angle JAB.

Supplementary angle:

Step 1: Extend BA to K. From E, draw an arc of any radius on the supplement of 40.

Step 2: Draw another line OP and using the compass with the above length draw an arc with O as centre.

Step 3: Measure ML. Draw an arc from Q with the measurement of ML. Join to form OT. Measure angle TOP=135.

Rate this question :

Draw an angle of 70°. Make a copy of it using only a straight edge and compasses.

NCERT - MathematicsConstruct with ruler and compasses, angles of following measures:

(a) 60° (b) 30°

(c) 90° (d) 120°

(e) 45° (f) 135°

NCERT - MathematicsDraw an angle of 40°. Copy its supplementary angle.

NCERT - MathematicsDraw an angle of measure 135° and bisect it.

NCERT - MathematicsDraw an angle of measure 45° and bisect it.

NCERT - MathematicsDraw an angle of measure 153° and divide it into four equal parts.

NCERT - MathematicsDraw ∠POQ of measure 75° and find its line of symmetry.

NCERT - MathematicsDraw an angle of measure 147° and construct its bisector.

NCERT - MathematicsThe number of common points in the two angles marked in Fig. 2.20 ______.

NCERT - Exemplar Mathematics

The common part between the two angles BAC and DAB in Fig. 2.22 is _______.

NCERT - Exemplar Mathematics