Question

1. Find the perimeter of a rectangle whose : (i) length = 40 cm and breadth = 35 cm​

Answer 1

Answer:

In mathematics, the additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite (number),[1] sign change,[2] and negation.[3] For a real number, it reverses its sign: the additive inverse (opposite number) of a positive number is negative, and the additive inverse of a negative number is positive. Zero is the additive inverse of itself.

Answer 2

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Given,

Length = 40 cm

Breadth = 35 cm

To find :-

perimeter of the rectangle

Solution :-

We know,

Perimeter of a rectangle = 2 × (Length + Breadth)

Applying this formula in the question,

→ 2 × ( 40 + 35 ) cm

→ 2 × 75 cm

→ 150 cm

→ 1 m 50 cm

Hence, The perimeter of the given rectangle is 1m 50 cm.

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