Question

the area of rectangle is 45sqcm with breadth 3cm it is length- cm​

Answer 1

Answer:

Area of Rectangle is length x breadth

Given breadth is 3cm and area is 45cm²

hence 45= l x 3

l= 45/3 = 15

length is 15cm

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Teacher.

Answer 2

Answer:

Length = 15cm

Given:

Area of Rectangle = 45cm²

Breadth of Rectangle = 3cm

Step-by-step explanation:

► To find the length of the rectangle

Let the breadth of the rectangle be "b" = 3cm

Let the length of the rectangle be "l"

Area of Rectangle given = 45cm²

• Formula for Area of Rectangle → l × b

⇒ l × 3 = 45

• Transposing 3 from L.H.S. to R.H.S, the sign of operation changes from multiplication to divisionand we get:

⇒ l = 45/3 = 15

∴ Length of Rectangle = 15cm