Question

7. The product of two decimal numbers is 5.3508. If one decimal number is 1.96, find the other.
8. Each side of a regular polygon is 8.1 cm in length. The perimeter of the polygon is 72.9 cm. Find the number
of sides of the polygon.​

Answer 1

Answer:

Q. No 7

Let the other number is x

1.96 × x = 5.3508

X =5.3508/1.96

X =2.73

The other number is 2.73

Q. No. 8

The perimeter of polygon is given = 72.9 and each side of regular polygon is 8.1

Then,

No. Of side of polygon is

= perimeter of polygon /side of polygon

= 72.9/8.1

=9

The number of sides of polygon is 9