Posted by Missy on Saturday, September 5, 2009 at 12:42pm.
wow thats a whole lot of questions is that all u r h/w?
1.
You are looking for the sides of a rectangle x,y such that x*y=20, and 2(x+y)=18.
Hint: the problem's solution is in integers. So all you need to try are the factors of 20 to make x*y=20, and verify the perimeter.
2. Correct!
3. Check the figure
Q-------------R----T
......14.........5
What is the length of QT?
4. Correct!
How did you find the answer?
5.
A linear pair of angles means that two angles are adjacent and the total is supplementary (180°). If one is acute (less than 90), so what is the other? (180-(less than 90°).
Feel free to post your answers for checking.
Related Questions
algebra - The area of a rectangle is 21 square meters. Find the length and width...
pre-algebra - Can you help me figure this? The area of a rectangle is 14 square ...
basic geometry - A rectangle has width the same asa a side of a square whose ...
college - The perimeter of a rectangle is 62 meters. The length is 1 meter more...
Math - You have 300 meters of fencing with which to build two enclosures. One ...
math - find the area of a rectangle that is 4 meters by 8 meters. A-12 SQUARE ...
Algebra - The side of a square equals the length of a rectangle. The width of ...
math concepts and applications - A rectangle has a length of 6 meters and a ...
lively - Suppose that the width of a certain rectangle is three-fourths of its ...
Stats - An instructor gives a test with 20 multiple choice questions. There are ...
For Further Reading