Question

the sides of a rectangle are 80 cm and 60 cm what is the length of dionagal?​

Answer 1

Given

Sides of rectangle are 80 cm and 60 cm.

So,

• Length = 80 cm
• Width = 60 cm

What To Find

Length of diagonal

Formula Using

$\large\begin{gathered} {\underline{\boxed{\rm {\red{ Diagonal \: = \: \sqrt{(Length )^{2} \: + \: ({Width})^{2}}}}}}}\end{gathered}$

Solution

$\large\bf{\orange{ \longrightarrow}} \tt \: Diagonal \: = \: \sqrt{ {(80)}^{2} \: + \: {(60)}^{2} }$

$\large\bf{\orange{ \longrightarrow}} \tt \: Diagonal \: = \: \sqrt{6400 \: + \: 3600}$

$\large\bf{\orange{ \longrightarrow}} \tt \: Diagonal \: = \: \sqrt{10000}$

$\large\bf{\orange{ \longrightarrow}} \tt \: Diagonal \: = \: \sqrt{100 \: \times \: 100}$

$\large\bf{\orange{ \longrightarrow}} \tt \: Diagonal \: = \: 100 \:$

Hence , the length of diagonal is 100 cm.

Answer 2

Explanation:

80*2 +60*2=x*2

6400+3600=x*2

=10000=x*2

=(100)*2=X

=100=x