Answer it:

17. Write the following as formulae.
a. The perimeter (p) of a square is four times its side (s) .
b. The amount (A) that has to be paid finally with interest (I) along with the principal (P) borrowed from a bank.
c. The speed (s) of a vhicle is obtained by dividing the distance travelled (d) by the time taken (t).

Dear student,
  1. Let 'p' be the perimeter of square and 's' be the length of its side, so the required formula is p= 4×s
  2. A = I+P
  3. s=dt

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