Question

The length of a rectangle is doubled and breadth is trebled then how many
times will the area of new rectangle that of the former rectangle ?
find the ratio of their perimeter?​

Answer 1

Answer:

Since length and width are perpendicular, Doubling either one will double the area. So Doubling both will quadruple the area. 2x2 = 4.

This idea works if the dimensions doubled are those that are used to compute area. Like the base and height of a triangle.

More generally, in a polygon, if all the sides are doubled, the area is multiplied by 4. In a circle, Doubling the radius will quadruple the area.

In 3 dimensions, Doubling one dimension will double the VOLUME. Doubling two perpendicular dimensions will quadruple the volume and Doubling 3 perpendicular dimensions will multiply the volume by 2x2x2 or 8.

Answer 2

Answer:

4.

Step-by-step explanation:

so right a x=xso it is a añswer