Question

perimeter and area 2d figure formulae ( rectangle , square , parellelogram , rhombus , triangle , circle )​

Answer 1

Answer:

1. perimeter of a rectangle: length + length + breadth + breadth

  area of a rectangle: length×breadth

2.perimeter of a square: length + length + length + length

   area of a square: length × length

3. perimeter of a parallelogram: sum of all its sides

  area of a parallelogram: base × height

4. perimeter of a rhombus: sum of all its sides

   area of a rhombus: 1/2 × (product of its diagonals)

5. perimeter of a triangle: sum of all its sides

   area of a triangle: 1/2 × base × height

6. perimeter/ circumference of a circle: 2PI r×r

   area of a circle: PIr×r

hope this helps :)

Answer 2

Shape. Area. Perimeter.

Rectangle l*b. 2(l+b)

Square. S*s. 4*s

Parellogram B*H. 2(base+side)

Rhombus diag. *diag. 4*side

/2

Triangle. 1/2*b*h. 3*side

Circle. π*r(square). 2πr