A field is in the shape of a trapezium having parallel sides 90 meters and 30 meters. These sides meet the third side at right angles. The length of the fourth side is 100 meters. If it costs Rs. 4 to plough 1 m2 of the field, find the total cost of ploughing the field.

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?