Question:
Side of a square garden is 30 m. If the scale used to draw its picture is 1cm: 5m, the perimeter of the square in the picture is
(a) 20 cm
(b) 24 cm
(c) 28 cm
(d) 30 cm
Solution:
(b) 24 cm
Given, side of a square garden = 30m
Scale to draw garden picture is 1cm: 5m
So, perimeter of the square garden is = 4 × 30
= 120m
Then,
Perimeter to draw garden in picture = 120/5
= 24 cm