Question

Find the perimeter and area of the following- 1 cm, 1 cm, 1.5 cm, 1.5 cm, 2 cm , 5 cm, 4 cm.​

Answer 1

Answer:

Perimeter of the rectangle = PQ + QR + RS + SP

= b +l + b + l

= 2b +2l

Again,

ABCD is a rectangle. We know that the opposite sides of a rectangle are equal.

Perimeter of a Rectangle

AB = CD = 5 cm and BC = AD = 3 cm

So, the perimeter of the rectangle ABCD = AB + BC + CD + AD = 5 cm + 3 cm + 5 cm + 3 cm = 16 cm

It can be written as 5 cm + 5 cm + 3 cm + 3 cm

= (2 × 5) cm + (2 × 3) cm

= 2 (5 + 3) cm

= 2 × 8 cm

= 16 cm

We add length and breadth twice to find the perimeter of a rectangle.

Perimeter of a rectangle = 2 (length + breadth)

Let us consider some of the examples on perimeter of a rectangle:

1. The length of a rectangle is 4 cm and its breadth is 2 cm. Find its perimeter.

Solution:

Length = 4 cm

Breadth = 2 cm

Examples on Perimeter of a Rectangle

Therefore, perimeter of the rectangle

= 2 (length + breadth)

= 2 (4 + 2) cm

= 2 × 6 cm

= 12 cm

here is your answer..

hopes it helps you...

Answer 2

Answer:

perimeter =sum of all sides=1+1+1.5+1.5+2+5+4=16cm

perimeter =16cm