Question

guys help me plz...​

Answer 1

Given :-

• Perimeter of Rectangle = 15(3/7)m.
• Length of Rectangle = 4(2/7)m.

To Find :-

• Breadth of Rectangle = ?

Formula used :-

• Perimeter of Rectangle = 2( Length + Breadth).

Solution :-

Let us Assume That, Breath of Rectangle is B m.

Than, we have ,

→ Perimeter = 2(Length + B)

Putting values we get :-

→ 15(3/7) = 2[ 4(2/7) + B ]

→ (108/7) = 2 [ (30/7) + B ]

→ (108/7) = (60/7) + 2B

→ 2B = (108/7) - (60/7)

→ 2B = (108 - 60) / 7

→ 2B = (48/7)

→ B = (48/7) * (1/2)

→ B = (24/7)

→ B = 3(3/7) m. (Ans.)

Hence, Required Breadth Of Rectangle will be 3(3/7)m.

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Extra About Rectangle :-

1) Each of the interior angles of a rectangle is 90°.

2) The diagonals of a rectangle bisect each other.

3) The opposite sides of a rectangle are parallel.

4) The opposite sides of a rectangle are equal.

5) A rectangle whose side lengths are a and b has area = a × b × sin90° = a × b

6) A rectangle whose side lengths are a a and b b has perimeter 2(a + b)...

7) The length of each diagonal of a rectangle whose side lengths are a and b is √(a²+b²)..

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Answer 2

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$\huge\tt{GIVEN:}$

• Perimeter of a rectangle is 15 ³/7 m
• it's length is 4 ²/7 m

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$\huge\tt{TO~FIND:}$

• It's Breadth

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$\huge\tt{SOLUTION:}$

↪Perimeter = 2(L+B)

↪15³/7 = 2(4²/7+ B)

↪108/7 = 2(30/7 + B)

↪2B = (108/7 - 60/7)

↪2B = 48/7

↪B = 48/7 ÷ 2

↪B = 48/7 × 1/2

↪B = 24/7 or 3(3/7)

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