The sides of a rectangle are 40 cm by 30 cm. If each side is increased by 10%, find the
percentage increase in area
Answers
Answered by
3
Answer:
21% increase
Step-by-step explanation:
Sides of rectangle = 40 cm and 30 cm
Area = (40×30) cm² = 1200 cm²
New sides of rectangle = 44 cm and 33 cm
New area = (44×33) cm² = 1452 cm²
Increase in area = (1452-1200) cm² = 252 cm²
Increase % = 252/1200 × 100 = 21%
Answered by
1
Step-by-step explanation:
The percentage increase in area is 21%
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