Question

The width of a rectangle is (3u-4v) centimeters, and its length measures (10u+2v) centimeters. What expression represents the perimeter, in centimeters, of the rectangle?
1. -4+26u+4v
2. 13u-2
3. 26u-4
4. 26u-4v

Answer 1

Perimeter is the sum of all the sides.

Rectangle has 2 widths (left and right) and 2 lengths (top and bottom). Mathematically:

\(P= 2W + 2L\)

W is given as (3u-4v) and L is given as (10u+2v) .
Plug these into the formula:

\(P= 2(3u-4v) + 2 (10u+2v) \)

Then simplify. Please let me know if you need further assistance, but hopefully you also try it on your own to learn.