Question

Find the area and perimeter of a rectangle, whose length = 8.5 cm, breadth = 4.5 cm​

Answer 1

Answer: perimeter= 26cm, area= 38.25 cm sq

Step-by-step explanation:

Perimeter=2[8.5+4.5] = 2 x 13 = 26cm

Area= 8.5 x 4.5 = 38.25 cm sq.

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Answer 2

Answer:

If PS = I and PQ = b

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

= b + I + b + I

= 2b + 2I

Again,

ABCD is rectangle. We Know that the opposite sides of a

rectangle are equal.

Here draw a rectangle

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

So, the perimeter of the reangle ABCD = AB + BC + CD

AD = 5cm + 3cm + 5 cm + 3 cm = 16

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

= ( 2 × 5 ) cm + ( 2 × 3 ) cm

= 2 ( 5 + 3 ) cm

= 2 × 8 cm

= 16cm

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