Question

find the length of the rectangle whose breadth is 10 centimetre and perimeter is 90 cm​

Answer 1

Answer:

 FIRST OF ALL-

LENGHT OF RECTANGLE- 90

BREADTH OF RECTANGLE- 10cm

PERIMETER OF RECTANGLE- 2x(90+10)

=2 x 100= 200

SO, THE PERIMETER IS 200 cm

Step-by-step explanation:

Answer 2

Given,

it is a rectangle

Perimeter = 90cm

breadth = 10cm find length let us take length as x cm

we know that

perimeter = 2(l+b) (where l is length and b is breadth)

90cm = 2(x+10)

90 = 2x + 20

90-20 = 2x

70 = 2x

70 ÷ 2 = x

35 = x

hence length is 35cm.

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