Question

3. (a) The ratio of the adjacent sides of a parallelogram is 4:5. Its perimeter is 90 cm. Find
corresponding to the smaller side, if its area is 320 cm?.​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

16cm

Step-by-step explanation:

let two adjacent side of a parrallelogram be 4x and 5x

and altitude be A

perimeter = 90

2(4x + 5x ) = 90

2× 9x =90

18x =90

x=5

therefore, side = 4x= 4×5 =20cm

and 5x= 5×5=25cm

area of ||gm = 320

Altitude × base = 320

A × 20 = 320

A = 16 cm