Question

given that ab//CD find the value of the unknown in each of the following figures​

Answer 1

Answer:

Since X,Y and Z lie on a straight line.

Therefore,

X,Y and Z are collinear.

For three collinear points, we will definitely have one of the points in between of other two.

So,

Seeing XY = 10 and XZ = 3, We can have these possible scenarios.

1. Z is between X and Y.

=> YZ = XY - XZ = 10 - 3 = 7