CBSE Class 9 Answered
HOW TO CONSTRUCT AN ANGLE OF MEASURE 67.5 DEGREE USING RULER AND COMPASS?
Asked by shabnakader | 12 Jan, 2017, 06:19: PM
Expert Answer
1. Draw any line PQ
2. With P as centre and any suitable radius, draw an arc to meet PQ at R.
3. With R as centre and same radius, draw an arc intersecting the previous arc at S.
4. With S as centre and same radius, draw another arc intersecting the arc at T.
5. With S and T as centre, draw arc of same radius to intersect each other at U.
6. Join PU, which is the required ray making 90o with given ray PQ.
7. Now, bisect angle UPQ, which gives two angles of measure 45o each.
8. Again, bisect angle 450 to get two angles measuring 22.50 each.
Now, 22.5o + 45o = 67.5o
Thus, angle APQ = 67.5o
Answered by Rashmi Khot | 13 Jan, 2017, 12:55: PM
Concept Videos
-
Basic Constructions
This video explains the construction of angle bisector and perpendicular bi... -
Construction of angle bisector and perpendicular bisect ...
Construction of angle bisector and perpendicular bisector of a line. Constr... -
Basic Constructions: Exam Prep Strategies
Construction of angle bisector and perpendicular bisector of a line. Constr...
CBSE 9 - Maths
Asked by bhawindersaini | 10 Aug, 2020, 06:58: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by dkmaradona8051 | 05 Aug, 2020, 09:44: AM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by syednargis55 | 26 Jun, 2019, 11:53: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by anuragsharma03jp | 16 Mar, 2019, 12:05: AM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by Topperlearning User | 06 Aug, 2014, 12:02: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by Topperlearning User | 06 Aug, 2014, 01:38: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by Topperlearning User | 06 Aug, 2014, 12:50: PM
ANSWERED BY EXPERTCBSE 9 - Maths
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERT
