In a classroom, 4 friends are seated at the points A,B,C,D as shown in figure. Champa and Chameli walk into class and observe for a few minutes Champa asks Chameli , Don’t you think ABCD is a square? Chameli disagrees. Using distance formula , find which of them is correct?

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?