7. From the following figures, find the values of a, b and c. A P 200 60° 559 a Bha 2 70°c 40°OR 600 0° 0 b В. (ii) {Hint: (i) Here, 60° +70° + c =180°; b = 180° - c and a + b + 20° = 180° = 50°, b = 130°, a = 30°. }
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Le t us assume that the median lies in the range 10-20

⇒ 
⇒ x = 25
As x has an acceptable value our assumption is correct and x =25
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