Two parallel straight lines intersect three concurrent straight lines at the points A , B , C and X,Y,Z respectively. Prove that AB : BC=XY : YZ .

(3) Let's draw 5 points which are collinear.

A variable line cuts n given concurrent straight lines at A_1,A_2...A_n such that sum_(i=1)^n 1/(OA_i) is a constant. Show that it always passes through a fixed point, O being the point of intersection of the lines

Draw sketch graph of y^(2) =x the y-axis and the straight line y=3 and shade the region bounded by them. Find the area of the shaded region

Let us draw a number line and put the following numbers on the line and name them. (b) Let's measure how many units E is from B

Let us draw a number line and put the following numbers on the line and name them. (a) +5, -2,+3, -6-, +2, -5 respecticly name as A-B-C-D-E-F

Let us draw a number line and put the following numbers on the line and name them. (g) What are the absolute values of the numbers of B & E.

Let us draw a number line and put the following numbers on the line and name them. (f) What is the relation between the numbers which are at A & F.

Let us draw a number line and put the following numbers on the line and name them. (c) How many units A is from B towards right.

Let us draw a number line and put the following numbers on the line and name them. (d) How many units D is from E towards left.