Question

The adjacent sides of a parallelogram are in the ratio 1 : 1.6 . If it's perimeter is 78cm find its sides

Answer 1

let the ratio be x

so adjacent sides are

x and 1.6x

opposite sides of parallelogram are congruent

so , other two sides are also x and 1.6x

perimeter = sum of all sides

perimeter = x + x + 1.6 x + 1.6 x

5.2x = 78

x = 78 / 5.2

x = 15 cm

other sides are 1.6 x = 1.6 × 15

= 24 cm

so all sides are 15 , 15 , 24 , 24

Answer 2

$\huge\boxed{\fcolorbox{black}{pink}{Answer}}$

let the ratio be x

so adjacent sides are

X and 1.6x

opposite sides of parallelogram are congruent

so, other two sides are also x and 1.6x perimeter = sum of all sides

perimeter = x + x + 1.6 x + 1.6 x

5.2x = 78

x= 78 / 5.2

x = 15 cm

other sides are 1.6 x = 1.6 × 15

24 cm =

so all sides are 15 , 15 , 24, 24

$\textbf{Hope\: it\: helps\: you\: ❤️ }$