3 years ago

Find the Perimeters of the rectangle whaledegonal is 5cm and lenght is 4cm

Mathematics

1 answer:

amid [387]3 years ago

3 0

Answer:

Step-by-step explanation:

First, we have to get the breadth value.

By the pythagoras theoreom,

Diagonal²=length² + breadth²

breadth = √( Diagonal²- length²)

breadth = √( 5² - 4²)

breadth = √9

breadth= 3

Perimeter of a rectangle = 2x ( length + breadth)

= 2 x ( 4 + 3)

= 2 x 7

= 14

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