Question

Find the

perimeter of the
rectangle.
20
10
Use the formula:
p = 21+ 2w
perimeter - 2x
length + 2 x width
1 = 10
w = 20
p = [?]

Answer 1

p = 60 cm

Explanation:

Our task is to find the perimeter of this rectangle, given that:

• length (l) = 10 units
• width (w) = 20 units

We will use the perimeter formula:

• p = 2l + 2w

where:

• p = perimeter

plug in our values:

`\twoheadrightarrow\sf{Perimeter_(rectangle)=2l+2w}`

`\twoheadrightarrow\sf{Perimeter_(rectangle)=2\cdot10+2\cdot20}`

`\twoheadrightarrow\sf{Perimeter_(rectangle)=20+40}`

`\twoheadrightarrow\sf{Perimeter_(rectangle)=60\:cm}`

Answer 2

P = 60 units

Explanation:

the perimeter (P) of a rectangle is calculated as

P = 2l + 2w ( l is the length and w the width )

here l = 10 and w = 20 , then

P = (2 × 10) + (2 × 20) = 20 + 40 = 60 units