Number System — Maths STD 9 — Question

The decimal representation of a rational number is either _______ or ________.

Fill in the blanks with < or >.
(Difference of any two sides of a triangle) (the third side).

Fill in the blanks with elements of that set.
U = {1, 3, 5, 8, 9, 10, 11, 12, 13, 15}
A = {1,11, 13}
B = {8,5, 10, 11, 15}
A’ = { }
B’ = { }
A ∩ B = { }
A’ ∩ B’ = { }
A ∪ B = { }
A’ ∪ B’= { }
(A ∩ B)’ = { }
(A ∪ B)’ = { }
Verify: (A ∩ B)’ = A’ u B’, (A u B)’ = A’ ∩ B’

Fill in the blank so as to make the following statements true:A ray stands on a line, then the sum of the two adjacent angles so formed is ______.

Fill in the blanks to make the following statements true:
Sum of the angles of a triangle is _______

Fill in the blanks:
A circle divides the plane, on which it lies, in _________ parts.

Complete the following statements by means of one of those given in brackets against each:
If opposite angles of a quadrilateral are equal, then it is necessarily a _________. (parallelogram, rhombus, rectangle).

Fill in the blanks with < or >.
(Sum of three altitudes of a triangle) (sum of its three side).

Fill in the blanks in the following so that the following statements is true.
Sides opposite to equal angles of a triangle are ____________.