Question

I don't know the answer of a part​

Answer 1

Ok i have followed you of a part
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Fjd
Answer of a part

Answer 2

Answer:

Ratio = 4:5 and Perimeter = 90cm

Let the adjacent sides of parallelogram be 4x (breadth) and 5x (length) .

2(length + breadth) = perimeter
=> 2(4x + 5x) = 90
=> 2(9x) = 90
=> 18x = 90
=> x = 90/18
=> x = 5

Length = 5(5) = 25cm
Breadth = 4(5) = 20cm

Here, breadth is the smaller side = 20cm. Let altitude/height be h.

Area of a parallelogram = base x height
=> 320 = 20 x h
=> 320 = 20h
=> h = 320/20
=> h = 16 cm

The altitude corresponding to the smaller side 20cm is 16cm.

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