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The perimeter of a rectangle is 120 cm and its length is 40 cm find its find the area of a rectangle

Posted by Anshul Dabral 4 years, 1 month ago

CBSE > Class 09 > Mathematics

2 answers

Aakanksha Rani 4 years, 1 month ago

Given : perimeter = 120cm Length=40cm according to question, 2(l+b)=perimeter of rectangle 2(40+b)=120 80+2b=120 2b=120-80 b=40/2 b=20 Now, Area of rectangle=l*b 20*40 800cm²

0Thank You

Ashish Mahato 4 years, 1 month ago

800cmsquare

1Thank You

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