Question

In a floral design made from tiles dimensions 40 cm by 60 cm (See figure), find the ratios of the perimeter of shaded portion to the perimeter of the whole design.

Answer 1

Perimeter of shaded portion = 10 units

Perimeter of whole design = 18 units

Area of shaded portion = 6 sq.units

Area of whole design = 20 sq.units

Ratio of perimeter of shaded portion to the perimeter of the whole design = `10/18`

= `5/9`

= 5 : 9