Question

The sides of a rectangle are 20 cm and 15cm if each side of the rectangle is increased by 20 percent,find the percentage increase in the area

Answer 1

$\textbf {Hey there, here is the solution.}$

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STEP 1: Find the area of the rectangle:

Area = Length x Breadth

Area = 20 x 15 = 300 cm²

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STEP 2: Find the new length and breadth:

Increase in length = 20% x 20 = 0.2 x 20 = 4 cm

New Length = 20 + 4 = 24 cm

Increase in breadth = 20% x 15 = 0.2 x 15 = 3cm

New Breadth = 15 + 3 = 18 cm

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STEP 3: Find new area:

Area = Length x Breadth

Area = 24 x 18 = 432 cm²

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STEP 4: Find the percentage increased:

Area increased = 432 - 300 = 132 cm²

Percentage increased = 132/300 x 100 = 44%

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Answer: The area increased by 44%

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⭐$\textbf {Cheers}$⭐

Answer 2

Refer to the attachment.....☺️

Be brainly.....☺️

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