Selection C is the correct choice.
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Diagonals of a parallelogram bisect each other, hence have the same midpoint.
5:6
The fraction 85/102 goes to 5/6 so it is 5:6 or 5/6...
100 and 110.
You would have to add 100 to both sides. This is because to complete the square, you need to take half of the x term and square it.
3x-5=x+55 (corr angle //line)
3x-x=55+5
2x=60
x=30
As we know that the sum of two sides of a triangle is greater than the third side ...
Option A is correct because 4+5=9>8
Option B is correct because 9+12=21>15
Option C is correct because 12+5=17>13
Hope it helps.....