Diagonals AC and BD of a quadrila.teral ABCD intersect each other at P. Show that ar(APBJ x ar(CPDJ = ar(APDJ x ar(BPC). [Hint: From A and C, draw perpendi.culars to BD.]

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?