New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 7 Properties of Triangles Self Practice 10C Solution
(1) Determine whether a triangle can have sides with the given lengths. Explain.
(a) 4, 6, 8
(b) 5, 7.5, 14
(c) 7.2, 8, 10
(d) 9, 14, 23
(e) 4.5, 4.5, 7
(f) 11.9, 5.8, 5.8
(g) 3x, 2x + 1, x2 when x = 5
(2) A is any point within a △PQR whose sides are 5 cm, 7 cm, 10 cm respectively. Prove that, AP + AQ + AR > 11 cm.
Solution Number 1 & 2:
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