Question

the sides of a rectangle are in theratio 4:5.if the perimeter of the rectangle is 90 cm ,find it sides ​

Answer 1

Answer:

Step-by-step explanation:

Here's your answer =>=>

Perimeter = 90cm

Length of sides = 4:5

Let the common ratio be x

So the sides will be 4x and 5x

We know the sum of all sides of a rectangle = Perimeter

So 2 (4x) + 2 (5x) = 90

4x + 4x + 5x + 5x = 90

18x = 90

x = 90/18

x = 5

Hence, the length of the sides is ===

4x = 4 × 5 = 20cm

5x = 5 × 5 = 25cm

To find the area of this rectangle___Follow the given steps____

Area of rectangle = Length × Breadth

Length = 20cm

Breadth = 25cm

Area = L × B

Area = 20cm × 25cm

Area = 500 cm^2

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Answer 2

Step-by-step explanation:

The sides of a rectangle are in the ratio 4 : 5.Find area if its perimeter is 90cm

Report by Saihaniya 29.05.2018

Answers

Beautiful5225

Beautiful5225Genius

Heya !!!!

Here's your answer =>=>

Perimeter = 90cm

Length of sides = 4:5

Let the common ratio be x

So the sides will be 4x and 5x

We know the sum of all sides of a rectangle = Perimeter

So 2 (4x) + 2 (5x) = 90

4x + 4x + 5x + 5x = 90

18x = 90

x = 90/18

x = 5

Hence, the length of the sides is ===

4x = 4 × 5 = 20cm

5x = 5 × 5 = 25cm

To find the area of this rectangle___Follow the given steps____

Area of rectangle = Length × Breadth

Length = 20cm

Breadth = 25cm

Area = L × B

Area = 20cm × 25cm

Area = 500 cm^2

Hope it will help you ☆▪☆