Question

A table top measures 30 cm by 10 cm. What is the perimeter of table top?

Answer 1

Answer:

80 cm

Step-by-step explanation:

The table-top has the shape of a rectangle [since it has two adjacent sides of different dimensions]. So, perimeter of table-top will be 2 × (length + width)

Given,

Length of table (l) = 30 cm

Width of table (b) = 10 cm

So, Perimeter = 2(l + b) = 2(30+10) = 2 × 40 = 80 cm

Answer 2

Given

Dimensions of table top 30cm by 10cm

To find

Perimeter of the table top

$\sf\huge\bold{\underline{\underline{{Solution}}}}$

Step by step explanation

1. First step is identify the given figure which type of :we observe that table top is rectangular in shape
2. We have to find perimeter of table top so we can use formula of perimeter of Rectangle as table is also in rectangular form.

Perimeter of table top =2(length+breadth)

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=2(30+10)$

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=2(40)$

$\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:\:=80cm$

∴Perimeter of table top is $\bold{\red{80\:cm}}$

Extra information=>

PERIMETER

Perimeter is the total distance occupy by a solid 2D figure around its edge.

Example in Real life : To fence a field with wire we need to find the cost of fencing in such case perimeter will used because we have to only fence border of the field.