A rectangle is three times as long as it is wide. If its length and width are bo
ID: 3098455 • Letter: A
Question
A rectangle is three times as long as it is wide. If its length and width are both decreased by 2cm, its area is decreased by 36cm2. Find its original dimensions. Make a sketch. I know that the answer is 15 x 5. But I need to know how to arrive at that answer. Everytime I do it "the right way" (which I'm guessing isn't 'cause I keep getting the wrong answer) I get 4 x 12. What am I doing wrong this time?! A rectangle is three times as long as it is wide. If its length and width are both decreased by 2cm, its area is decreased by 36cm2. Find its original dimensions. Make a sketch. I know that the answer is 15 x 5. But I need to know how to arrive at that answer. Everytime I do it "the right way" (which I'm guessing isn't 'cause I keep getting the wrong answer) I get 4 x 12. What am I doing wrong this time?!Explanation / Answer
the origional dimensions are 15 feet long, and 5 feet wide. this is becuase the origional are would be 75, and if u lose 2cm of each dimension the area would be 39 (3 ft by 13 ft). So 75-39= 36 decreation... the figure would look like a rectangle with a length 3 times as it is wide.