Question

Find the perimeter of table top 2m 15cm by 1m 65cm​

Answer 1

$\textbf{\underline{\underline{Answer :-}}}$

$\text{The Perimeter is 7 m 6 cm}$

$\textbf{\underline{\underline{Explanation :-}}}$

Given :

Measures of the Rectangle = 2m 15cm by 1m 65cm

To find :

The Perimeter of Rectangle

Solution :

Length = 2m 15cm

Breadth = 1m 65cm

Convert them into Centimetre for the ease of solving.

1 m = 100 cm

2m 15cm into cm

$\rightarrow$ 2 × 100 + 15

$\rightarrow$ 200 + 15

$\rightarrow$ 215 cm

1m 65 cm into cm

$\rightarrow$ 1 × 100 + 65

$\rightarrow$ 100 + 65

$\rightarrow$ 165 cm

$\star$The Perimeter of Rectangle =

$\tt{\implies2(length + breadth)}$

$\tt{\implies2(215 + 165)}$

$\tt{\implies430 +330 }$

$\tt{\implies760}$

${\boxed{\bigstar{\sf\:{Perimeter = 760 \: cm}}}}$

760 cm into m

1 m = 100 cm

$\tt{\implies760 \div 100}$

$\tt{\implies7.6}$

${\boxed{\bigstar{\sf\:{Perimeter = 7 \: meter \: 6 \: cm}}}}$

$\therefore$$\text{The Perimeter is 7 m 6 cm}$

Answer 2

Perimeter of a rectangular table top = 2 ( l + b )

Given:

l = 2m 15 cm

=》 2.15 m

b = 1m 65 cm

=》 1.65 m

Put the values in the formula:

Perimeter = 2 ( 2.15 + 1.65 )

=》 2 ( 3.8 )

=》 7.6 m

●•~ Hence verified ~•●