Question

What are the sides ordered from from least to greatest

Answer 1

7)a>c>b

8)8>7>6 and (angle b>a>c)

9)a>c>b

Explanation:

in front of big angle there will be big side

9)180-71=109

x-1+4x-15=109

5x-16=109

x=25

Answer 2

Explanation:

7) The side opposite to the biggest angle is the longest.

75° > 56° > 49°

⇒ a > c > b

8) The angle opposite to the longest side is the biggest

8 > 7 > 6

⇒ b >a > c

9) 71 + x - 1 + 4x - 15 = 180 {Angle sum property of triangle}

71 - 1 - 15 + x + 4x = 180

55 + 5x = 180

5x = 180 - 55

5x = 125

x = 125/5

x = 25

x -1 = 25 - 1 = 24°

4x - 15 = 4*25 - 15 = 100 - 15 = 85°

85° > 71° > 24°

⇒ a > c > b