Question

The length, breadth and height of a room are 15 m, 10 m and 2 m respectively. What will be the area of ​​the four walls of the room?​

Answer 1

given★

• The length, breadth and height of a room are 15 m, 10 m and 2 m respectively.

find★

• area of the four walls of the room

solution★

• we know that room four walls find formula =$\star\pink{2(l+b)h}$

question according

• put given value in formula of room four walls

• $= 2(15 + 10)2 \\ \\ = 2(25)2 \\ \\ = 50 \times 2 \\ \\ = 100$

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finally we get area of the four walls of the room=

$100m {}^{2}$

✔️

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$\huge\star\purple{note}$

• this formula make
• rectangle permamiter multiplied height
• 2(l+b)×h

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I hope it helps you