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CBSE Class 9 Answered

HOW TO CONSTRUCT ANY OBTUSE ANGLE AND DIVIDE IT INTO FOUR EQUAL PARTS USING RULER AND COMPASS?
Asked by shabnakader | 12 Jan, 2017, 06:21: PM
answered-by-expert Expert Answer
 
1. Construct any obtuse POQ = 120o.
2. With O as centre and any (suitable) radius, draw an arc to meet OP at R and OQ at S.
3. With R as centre and radius more than half of RS, draw an arc. Also, with S as centre and same radius draw another arc to meet the previous arc at B.
4. Join OB and produce it.
5. Let SR intersect OB at T.
6. With S and T as centre and radius more than half of ST, draw an arcs. Let them intersect at A.
7. With R and T as centre and radius more than half of RT, draw an arcs. Let them intersect at C.

Thus, an obtuse angle is divided into four equal parts.
Answered by Rashmi Khot | 13 Jan, 2017, 01:53: PM

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