which of these can never be ratio of sides of a triangle
a 3:5:7
b 3:5:3
c2:2:3
d2:5:8
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Answer A is correct
Step-by-step explanation:
let x be common ratio
3x +5x + 7x =180 ( angle sum property of triangle)
15 x = 180
x = 180/15
x = 12
3x = 3x12 = 36
5x = 5x12 = 60
7x = 7x12 = 84
therefore, 36+60+84 = 180°
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