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CBSE Class 9 Answered

answer to all question

 

Asked by Chetna.lagoon | 18 Aug, 2019, 07:32: PM
Expert Answer
2.
In triangle PQR,
angle P - angle Q = 45° and angle Q - angle R = 30°
angle P = angle Q + 45° and angle R = angle Q - 30°
angle P + angle Q + angle R = 180°
 
angle Q + 45° + angle Q + angle Q - 30° = 180°
3angle Q = 165°
angle Q = 55°
angle P = angle Q + 45° and angle R = angle Q - 30°
angle P = 55° + 45° and angle R = 55° - 30°
angle P = 100° and angle R = 25°
Answered by Sneha shidid | 18 Aug, 2019, 08:00: PM
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