Question

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Q3. Areas and breadths of rectangles given below, find their lengths.
(i) 432cm?, 18cm (ii) 55.9m², 6.5m​

Answer 1

$\sf \Large Solution!!$

The areas and breadths of the rectangles are given. We have to find their length. So, we can apply the formula of area of a rectangle to find out the length easily. Area = Length × Breadth

$\sf \to$ Area = 432 cm²

$\sf \to$ Breadth = 18 cm

$\sf \to$ Area = Length × Breadth

$\sf \to$ 432 cm² = Length × 18 cm

$\sf \to$ Length = 432 cm² ÷ 18 cm

$\sf \to$ Length = 24 cm

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$\sf \to$ Area = 55.9 m²

$\sf \to$ Breadth = 6.5 m

$\sf \to$ Area = Length × Breadth

$\sf \to$ 55.9 m² = Length × 6.5 m

$\sf \to$ Length = 55.9 m² ÷ 6.5 m

$\sf \to$ Length = 8.6 m

Answer 2

Answer:

(I) Area= 432cm square

Breadth= 18cm

Solution

let the length be A

area = length × breath

432cm square = A× 18cm

432cm square = A

18cm

24cm = A ( length )

(ii) Area = 55.9msquare

Breadth = 6.5 m

let the length be C

area=length × breadth

55.9m square = C× 6.5m

55.9m square = C

6.5m

8.6m = C ( length)

hope it's helpfull