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.​

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.​

in progress 0
Vodka 3 years 2021-08-14T03:34:04+00:00 1 Answers 8 views 0

Answers ( )

  1. ThanhThu
    0
    2021-08-14T03:35:40+00:00
    Reply

    Answer:

    20 % increase in Area

    Step-by-step 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. 15×2(ten percent) = 30. Which give us 150+30 equal to 180.

    7. 2 ten percent equals 20%

    8. Answer is 20%.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )