hsanotes.com notes – short, clear, exam-focused – help score 90+ marks in Punjab board exams.
Features of hsanotes.com notes
- Short definitions
- Step-by-step solutions
- Tricks & aids
- PCTB / PECTAA alignment
- Angles/quadrants simplified
- Past paper questions
- Revision format
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For Punjab boards (Lahore, Gujranwala, Rawalpindi, Faisalabad, Bahawalpur, Multan, Sargodha, Sahiwal, DG Khan) and top schools: The City School, Beaconhouse, Roots International, Lahore Grammar School (LGS), Karachi Grammar School, Froebel’s, The Educators, Army Public School (APS), Divisional Public School, Government Model School.
Exercise 6.1 – Quadrants & Co-terminal Angles (Q1)
(i) 65°: Quadrant I, Co-terminal 425°
(ii) 135°: Quadrant II, Co-terminal 495°
(iii) -40°: Quadrant IV, Co-terminal 320°
(iv) 210°: Quadrant III, Co-terminal -150°
(v) -150°: Quadrant III, Co-terminal 210°
DMS to Decimal (Q2)
(i) 123.456° → 123°27’22”
(ii) 58.7891° → 58°47’21”
(iii) 90.5678° → 90°34’4″
Decimal to DMS (Q3)
Convert using Degrees + Min/60 + Sec/3600.
View PDF for full calculations.
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Keywords
Class 9 SSC Part 1 Matric Maths, Unit 6 Coordinate Geometry PCTB, PECTAA Class 9 Notes, Punjab Boards 90+ marks, Quadrants solved, Co-terminal Angles, Beaconhouse notes, LGS notes, The City School notes, hsanotes.com, Exercise 6.1 solved