Question

3
Find the area of rectangles with the following dimensions
a. Length = 24 m, Breadth = 12 m
b. Length - 35 cm, Breadth = 250 mm
​

Answer 1

Answer:

Length×Breadth is the formula for area of a rectangle

so...

a)24×12=228m

b)35cm in mm = 350×250

=87500mm

Answer 2

$\underline{\underline{\huge{\gray{\tt{\textbf Answer :-}}}}}$

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$\sf\large\bold{\orange{\underline{\blue{ Given :-}}}}$

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• Dimensions of rectangle

• a. Length = 24 m, Breadth = 12 m

• b. Length - 35 cm, Breadth = 250 mm

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$\sf\large\bold{\orange{\underline{\blue{ To \: Find :-}}}}$

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• Area of rectangle

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$\sf\large\bold{\orange{\underline{\blue{ Solution :-}}}}$

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$\boxed { \bold { 1 \: mm = \dfrac { 1 } { 10 } }}$

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• $\bf 350 \: mm = 35 \: cm$

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$\underline{ \underline{\bold{\texttt{Area of rectangle :}}}}$

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➠ l × b ⚊⚊⚊⚊ ⓵

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Where ,

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• l = Length

• b = Breadth

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Case I

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$\sf \green { \Large\star \: } \pink { a) \: Length = 24 m, Breadth = 12 m }$

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• l = 24 m

• b = 12 m

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⟮ Putting the values in ⓵ ⟯

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: ➜ l × b

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: ➜ 24 × 12

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: : ➨ 288 sq. m.

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• Hence the area of rectangle in a) is 288 sq. m.

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Case II

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$\sf \green { \Large \star \: } \pink { b) \: Length = 35 cm, Breadth = 250 mm }$

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• l = 35 cm

• b = 25 cm

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⟮ Putting the values in ⓵ ⟯

$\:\:$

: ➜ l × b

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: ➜ 35 × 25

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: : ➨ 875 sq. cm.

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• Hence the area of rectangle in b) is 875 sq. cm.