Question

Q-4 The length of a rectangular plot is 60 cm and its area is 3000 sq.m. Find the
width of the plot.(2 Marks)​

Answer 1

$\sf \large \underbrace{ \underline{Understanding \: the \: Concept}}$

Here's the concept of area of rectangle is used,where we are given length in cm and breadth in meter and we have to find the breadth.First we have to make length and area in same S.I. unit then we have to apply formula of area of rectangle to find the breadth of rectangle.

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Let's start!

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GIVEN:

⊙ Area of rectangle =3000m²

⊙ Length of rectangle=60cm=0.6m

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TO FIND:

⊙ Breadth of rectangle

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SOLUTION:

$\large \underline{ \boxed{ \blue{\sf&#10029Area \: of \: rectangle=length×breadth}}}$

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$\sf \implies3000m {}^{2} = 0.6m \times breadth$

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$\sf \implies \dfrac{3000m {}^{2}}{0.6} = breadth$

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$\sf \implies 5000m = breadth$

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Hence the breadth of rectangular plot is 5000m.

$\sf \large \underbrace{ \underline{More \: formulae \: to \: know}}$

$\sf★Area \: of \: square=Side²$

$\sf★Perimeter \: of \: rectangle=2(L+B)$

$\sf ★Perimeter \: of \: square=4×Side$

$\sf★Area \: of \: circle=πr²$

$\sf★Area \: of \: triangle=\dfrac{1}{2}×Base×Height$

$\sf★Perimeter \: of \: circle=2πr$