For a quadrilateral, answer the following question: (i) How many pairs of adjacent sides does it have? (ii) How many pairs of opposite sides does it have? (iii) How many pairs of adjacent angles does it have? (iv) How many pairs of opposite angles does it have? (v) How many diagonals does it have?

What are the differences between similar triangles and congruent triangles?

What are Armstrong numbers?

All real numbers are rational numbers.

A) True

B) False

The L.C.M of the smallest 2 digit composite number and the smallest composite number is:

• (a) 12
• (b) 4
• (c) 20
• (d) 44

Are all natural numbers also whole numbers?