What is the ratio of Milky Way radius to our solar system radius given that the distance from Pluto to sun is 5.9×1012 metres and the milky way disk radius is 3.9×1020 metres? Round off coefficient to the nearest tenth.

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?