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CBSE Class 7 Answered

the perimeter of a rectangle plank is 120cm if it's length is 40 cm find the breadth and the area of plank maths
Asked by vishnuchavan66648 | 23 May, 2024, 10:42: AM
answered-by-expert Expert Answer

Perimeter of rectangle = 120 cm = 2(length + breadth) = 2(40 + b)

i.e. 60 = 40 + b

i.e. b = 20 cm

Area of the rectangle = length x breadth = 40 x 20 = 800 square cm

Answered by Rashmi Khot | 27 May, 2024, 02:31: PM
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