Question

A rectangle measures 15 cm by 10 cm is given, if the length of side is

increased by 20%, find the increase of area in percentage.​

Answer 1

20 % increase in Area

Explanation:

1. Original Rectangle Area = 150cm ²

2. 20% of 15 is 3

3. Increased length is equal to 18

4. Increased Rectangle Area = 180cm ²

5. Ten percent of 150 = 15.

6. 15x2(ten percent) = 30. Which give us 150+30 equal to 180.

7. 2 ten percent equals 20%

8. Answer is 20%.