Question

1. Find the perimeter and area of the following rectangles:
(a) length = 20m, breadth = 15 m

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Answer 1

Step-by-step explanation:

Perimeter of rectangle-2*(l+b)

Perimeter of rectangle-2*(20+25

Perimeter of rectangle-2*45

Perimeter of rectangle-90m

Area of rectangle- length*breadth

Area of rectangle-20*25

Area of rectangle-500m

Answer 2

☆ Solution ☆

Given :-

• Length of the rectangle = 20 m

• Breadth of the sentence = 15 m

To Find :-

• The perimeter of the rectangle

• The area of the rectangle

Step-by-Step-Explaination :-

As we know that :-

Perimeter of the rectangle = 2 ( l + b )

Where,

• l = 20 m

• b = 15 m

Putting the respective value,

Perimeter of the rectangle = 2 ( 20 + 15 )

Perimeter of the rectangle = 2 × 35

Perimeter of the rectangle = 70

Hence,

The Perimeter of the rectangle = 70 cm

Now,

As we know that :-

Area of the rectangle = l × b

Where,

• l = 20 m

• b = 15 m

Putting the respective value,

Area of the rectangle = 20 × 15

Area of the rectangle = 300

Hence,

The area of the rectangle = 300 m