Math, asked by ansh432, 10 months ago

find the breadth of the rectangle whose length is 70 cm and perimeters
200 CM

Answers

Answered by riyabakshi123

Step-by-step explanation:

perimeter of rectangle formula

2( l + b )

l = 70

perimeter = 200

2(70 + b) = 200

140 + 2b = 200

60 = 2b

so breadth is 30 cm

Answered by MagicalGiggles

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→ let breadth ( b ) = x

→ length ( l ) = 70 cm

Area of rectangle = length × breadth

Area of rectangle = 70 + x

Perimeter of rectangle = 2 ( length + breadth ) = 200

Perimeter of rectangle = 2 ( 70 + x ) = 200

Perimeter of rectangle = 140 + 2x = 200

→ 2x = 200 - 140

→ 2x = 60

→ x = 60 / 2

:. Breadth of the rectangle is 30 cm .

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