Question

the perimeter of a rectangle is 28 cm and its length is 7 cm find its breadth and area​

Answer 1

Answer:

Breadth=7 cm Area = 49 cm sq.

Step-by-step explanation:

Let the breadth be b

A/q

Perimeter = 2(l+b)

28=2(7+b)

28=14+2b

28-14=2b

14/2=b

b=7cm

Therefore,

Area = l×b

=7×7

=49 cm sq.

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Answer 2

❏ Question:-

the perimeter of a rectangle is 28 cm and its length is 7 cm find its breadth and area.

❏ Solution:-

Given:-

• Perimeter of rectangle = 28cm
• Length of rectangle = 7cm

Find:-

• Breadth of rectangle = ?.

❏ Explanation:-

Case(1):-

( We Know )

★ Perimeter of Rectangle = 2×(Length + Breadth )

➠ 28 = 2 ×(7 + Breadth)

➠ ( 7 + Breadth) = 28/2

➠ ( 7 + Breadth) = 14

➠ Breadth = 14 - 7

➠ Breadth = 7 [ Ans ]

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Case(2):-

★ Area of Rectangle = (Length × Breadth)

➠ Area = ( 7 × 7 )

➠ Area = 49 cm² [ Ans. ]

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