Question

find the perimeter of a rectangle frame 70 metre long and 30 metre wide​

Answer 1

Answer:

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★Perimeter of rectangle = 2(l+w)

Hence, 2 (70+30) = 2(100) = 200 cm

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Answer 2

Given :

• Length of a rectangular frame = 70 m
• Breadth of a rectangular frame = 30 m

To calculate :

• The perimeter of a rectangular frame.

Calculation :

In order to calculate the perimeter of rectangle, formula is given by :-

$\underline{ \boxed{ \tt{Perimeter_{(Rectangle)} = 2 \times (l + b) }}}$

Here,

• ${l}$ = length
• ${b}$ = breadth

Plugging the values,

$: \implies \rm Perimeter_{(Rectangle)} = 2 \times (70 + 30)$

Adding the numbers,

$: \implies \rm Perimeter_{(Rectangle)} = 2 \times 100$

Multiplying the numbers,

$: \implies \underline {\boxed{\rm Perimeter_{(Rectangle)} = 200 \: m^2}}\blue{ \bigstar}$

Therefore, the perimeter of a rectangular frame is 200 m².