Question

the side of the rectangle are 20 cm and 15 cm. II each side is increased by 20%, find
the percentage increase in the area.​

Answer 1

Answer:

44 percent

Step-by-step explanation:

The sides of the rectangle are 20 cms and 15 cms.

Therefore the area of the rectangle is

20 × 15 = 300 sq. cms.

If each side is increased by 20 percent, the sides will be

20 + 4 = 24 cms and 15 + 3 = 18 cms.

Area of the new rectangle will be 24 × 18 = 432 sq. cms.

Therefore percentage increase in the area will be

(432 - 300) /300 × 100 = 44 percent

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