Find the area of the sheet required to make a cylindrical container which is opened at one side and whose diameter is 28cm and height is 20cm . Find the approximate area of the sheet required to make the lid of height 2cm for this container.

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?