Question

If the dimensions of a rectangle are tripled, which of the following best describes theeffect on the rectangle?Reset buttoncompleting thisResetO The new area will be 2 times as large as the original

Answer 1

Given:

If the dimensions of a rectangle are tripled.

Required:

which of the option best describes the effect on the rectangle?

Explanation:

Dimensions of rectangle are

$A_1=length(l)\times breadth(b)$

If the dimensions of rectangle are tripled

$\begin{gathered} A_2=3l\times3b \\ A_2=9(l\times b) \\ A_2=9A_1 \end{gathered}$

The original area is multiplied by 9.

Answer:

Hence, option D is correct.