Question

The perimeter of a rectangle is given by the formula P = 2(l + w), what is the value of P if l = 2 cm and w = 1/2 cm?

A)

2

1

2

cm



B)

3 cm



C)

5 cm



D)

10 cm
TIA!

Answer 1

`\large\boxed{C)\ 5cm}`

Explanation:

`P=2(l+w)\\\\\text{Put}\ l=2cm\ \text{and}\ w=(1)/(2)cm\ \text{to the formula of the perimeter:}\\\\P=2\left(2+(1)/(2)\right)=(2)(2)+(2)\left((1)/(2)\right)=4+1=5\ cm`