CBSE Class 7 - Perimeter of Polygons Videos

• the perimeter of a rectangle plank is 120cm if it's length is 40 cm find the breadth and the area of plank maths
• how many envelopes can be made out of a sheet of paper 125 CM by 85 CM supposing 1 requires a piece of paper of size 70 cm by 5 cm
• the area of square is dash whose perimeter is 160m
• Area of the square and rectangle are equal if the side of the square is 140 cm . Find the length and breadth of the rectangle and also find the perimeter 
• The perimeter of a rectangular sheet is 100 cm. if length is 35 cm,Find it's breadth Also,find it's area.
  
• if the ratio. of the area of two square is 9:1 then the ratio their perimeter
• what is the perimeter of triangle
• What is the formula of perimeter of rectangle
• 23 no.
  
• peremiter of rectangle

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