Question

halp me plss halp me plss

Answer 1

Answer:

fence length is 20 cm

Step-by-step explanation:

let fence be c

use Pythagoras theorem,

a² + b² = c²

here a is 12 cm and b is 16 cm

12² + 16² = c²

c = √12² + 16²

c = √400

c = 20

Answer 2

Answer:

The length of Fence will be 20 m.

Step-by-step explanation:

As per given question we have provided that :

• ⟶ Length of rectangle = 16 m
• ⟶ Width of rectangle = 12 m
• ⟶ Diaognal of rectangle = Fence

Here's the required formula to find Fence (Diaognal) of rectangle :

$\longrightarrow{\pmb{\rm{d = \sqrt{ {(l)}^{2} + {(w)}^{2}}}}}$

• ⟶ d = diagonal
• ⟶ l = length
• ⟶ w = width

Substituting all the given values in the formula to find the length of Fence :

$\longrightarrow{\sf{Fence = \sqrt{ {(l)}^{2} + {(w)}^{2}}}}$

$\longrightarrow{\sf{Fence = \sqrt{ {(16)}^{2} + {(12)}^{2}}}}$

${\longrightarrow{\sf{Fence = \sqrt{ {(16 \times 16)}+ {(12 \times 12)}}}}}$

${\longrightarrow{\sf{Fence = \sqrt{ {(256)}+ {(144)}}}}}$

${\longrightarrow{\sf{Fence = \sqrt{256+ 144}}}}$

${\longrightarrow{\sf{Fence = \sqrt{400}}}}$

${\longrightarrow{\sf{\underline{\underline{\red{Fence = 20 \: m}}}}}}$

Hence, the length of Fence will be 20 m.

$\rule{300}{2.5}$