Question

a square bulletin board has a side of 90cn a student copies the board on paper the perimeter of the copied board is 40cm what scale has the students use
​

Answer 1

Answer:

student used 1cm = 9cm

Step-by-step explanation:

perimeter of square board = 4× sides

= 4×90cm

= 360cm

student copied in space = 49 cm

let scale used be x

then,

40cm x = 90 cm

x = 90cm/40cm

x=9

thus the scale used is 1/9 th times the actual